Compared to a lot of other utility forms i'm not sure the beatle stacks up. Most of all is this pinch failure rate intended? Here is a snippet of a fight.

Mursa's punch MUTILATES a large guard!

<347hp 226m 187mv 1666tnl (84.13%)> <36 Arial A-P> Khratetch the Knight of the Apocalypse
*31 Human Shf* (PK) Istihl the Master of Levitation
<31 H-Elf Asn> (PK) Mursa the Ippon Seinage
<33 Human Nec> (PK) Orumaen the Greater Golem Maker
<24 Felar War> (PK) Cgragk the Knight
<30 Human Thi> (PK) Blitterskip the Elder Thief
<29 Human Bar> (PK) Tormin the Songsmith, Sheathed Blade
<36 Arial War> Xarius the Victorious Champion

Players found: 8

<347hp 226m 187mv 1666tnl (84.13%)>
Tormin sings 'Ah! the voice of by gone days
Will come back again,
Whispering to the weary hearted
Many a soothing strain.'

The solemn melody gently numbs your pain.

<347hp 226m 187mv 1666tnl (84.13%)> p
A diseased human shivers and suffers.
A diseased human's poison injures him.

<347hp 211m 203mv 1666tnl (84.13%)> pinch
Mursa's punch EVISCERATES a large guard!
Mursa's punch EVISCERATES a large guard!
A large guard dodges your chomp.
Your chomp EVISCERATES a large guard!
A large guard parries your chomp.
A large guard's slash MUTILATES Mursa!
Mursa is blinded by the dirt in his eyes!
A large guard's kicked dirt scratches Mursa.
A large guard has a few scratches.

<347hp 211m 203mv 1666tnl (84.13%)> pinch
Mursa's caltraps devastates a large guard!
A large guard has a few scratches.

<347hp 211m 203mv 1666tnl (84.13%)> pinch
You try and pinch a large guard between your mandibles.
Your pinching mandibles misses a large guard.
A large guard has a few scratches.

<347hp 211m 203mv 1666tnl (84.13%)> pinch
Mursa's punch EVISCERATES a large guard!
A large guard has a few scratches.

<347hp 211m 203mv 1666tnl (84.13%)> pinch

Tormin sits down and rests.
A large guard has a few scratches.

<347hp 211m 203mv 1666tnl (84.13%)>
Your chomp DISMEMBERS a large guard!
Your chomp MASSACRES a large guard!
A large guard's slash maims Mursa!
A large guard sends Mursa sprawling with a powerful bash.
A large guard's bash hits Mursa.
A large guard has some small but disgusting cuts.

<347hp 211m 203mv 1666tnl (84.13%)>
A large guard deftly ducks under your chomp.
A large guard has some small but disgusting cuts.

<347hp 211m 203mv 1666tnl (84.13%)> You try and pinch a large guard between your mandibles.
Your pinching mandibles misses a large guard.
A large guard has some small but disgusting cuts.

<347hp 211m 203mv 1666tnl (84.13%)>
Mursa fails to perform a joint lock on a large guard.
Mursa's kansetsuwaza misses a large guard.
A large guard has some small but disgusting cuts.

<347hp 211m 203mv 1666tnl (84.13%)> gr

A large guard parries your chomp.
Mursa's punch DISMEMBERS a large guard!
A large guard sends Mursa sprawling with a powerful bash.
A large guard's bash scratches Mursa.
A large guard has some small but disgusting cuts.

<347hp 211m 203mv 1666tnl (84.13%)>
Tormin goes to sleep.
A large guard has some small but disgusting cuts.

<347hp 211m 203mv 1666tnl (84.13%)> pinch
Your chomp DISMEMBERS a large guard!
A large guard has some small but disgusting cuts.

<347hp 211m 203mv 1666tnl (84.13%)> pinch

A large guard dodges your chomp.
A large guard dodges your chomp.
Your chomp DISMEMBERS a large guard!
A large guard has some small but disgusting cuts.

<347hp 211m 203mv 1666tnl (84.13%)>
Mursa fails to perform a joint lock on a large guard.
Mursa's kansetsuwaza misses a large guard.
A large guard has some small but disgusting cuts.

<347hp 211m 203mv 1666tnl (84.13%)> a massive bombardier beetle's group:
<31 Shf> A massive bombardier beetle 100% hp 35% mana 55% mv 185834 xp
<31 Asn> Mursa 79% hp 94% mana 100% mv 235742 xp
<29 Bar> Tormin 100% hp 33% mana 100% mv 196102 xp
A large guard has some small but disgusting cuts.

<347hp 211m 203mv 1666tnl (84.13%)> You try and pinch a large guard between your mandibles.
Your pinching mandibles misses a large guard.
A large guard has some small but disgusting cuts.

<347hp 211m 203mv 1666tnl (84.13%)>
Your chomp DISMEMBERS a large guard!
Your chomp DISMEMBERS a large guard!
A large guard dodges your chomp.
A large guard's slash MUTILATES Mursa!
A large guard is covered with bleeding wounds.

<347hp 211m 203mv 1666tnl (84.13%)> pi
A large guard dodges your chomp.
Your chomp DISMEMBERS a large guard!
A large guard's slash maims Mursa!
Mursa uses his speed and the open space to keep away from a large guard's bash.
A large guard is covered with bleeding wounds.

<347hp 211m 203mv 1666tnl (84.13%)> pinch
Mursa painfully hyperextends a large guard's shoulder!
A large guard screams in pain as Mursa applies kansetsuwaza to his shoulder!
Mursa's kansetsuwaza MASSACRES a large guard!
A large guard is covered with bleeding wounds.

<347hp 211m 203mv 1666tnl (84.13%)> pinch

A large guard parries your chomp.
Your chomp DISMEMBERS a large guard!
A large guard is covered with bleeding wounds.

<347hp 211m 203mv 1666tnl (84.13%)> You try and pinch a large guard between your mandibles.
Your pinching mandibles misses a large guard.
A large guard is covered with bleeding wounds.

<347hp 211m 203mv 1666tnl (84.13%)>
A large guard parries your chomp.
Your chomp EVISCERATES a large guard!
Mursa's punch DISMEMBERS a large guard!
A large guard is covered with bleeding wounds.

<347hp 211m 203mv 1666tnl (84.13%)> whe

Mursa grabs hold of a large guard's wrist and twists it violently!
Mursa's kotegaeshi DISMEMBERS a large guard!
A large guard is covered with bleeding wounds.

<347hp 211m 203mv 1666tnl (84.13%)> pinch
A large guard dodges your chomp.
Mursa's punch EVISCERATES a large guard!
Mursa's punch DISMEMBERS a large guard!
A large guard is covered with bleeding wounds.

<347hp 211m 203mv 1666tnl (84.13%)> pinch

Your chomp EVISCERATES a large guard!
A large guard dodges your chomp.
Mursa's punch DISMEMBERS a large guard!
A large guard sends Mursa sprawling with a powerful bash.
A large guard's bash grazes Mursa.
A large guard is covered with bleeding wounds.

<347hp 211m 203mv 1666tnl (84.13%)> People near you:
(PK) a massive bombardier beetle The Muddy Battlefront
(PK) Mursa The Muddy Battlefront
(PK) Tormin The Muddy Battlefront
A large guard is covered with bleeding wounds.

<347hp 211m 203mv 1666tnl (84.13%)> You try and pinch a large guard between your mandibles.
Your pinching mandibles misses a large guard.
A large guard is covered with bleeding wounds.

<347hp 211m 203mv 1666tnl (84.13%)>
A large guard dodges your chomp.
A large guard's slash devastates Mursa!
A large guard is covered with bleeding wounds.

<347hp 211m 203mv 1666tnl (84.13%)> gr
pinch
A large guard dodges your chomp.
A large guard dodges your chomp.
Mursa's punch maims a large guard!
A large guard is covered with bleeding wounds.

<347hp 211m 203mv 1666tnl (84.13%)> pinch
Mursa fails to execute a joint lock on a large guard.
Mursa's kotegaeshi misses a large guard.
A large guard is covered with bleeding wounds.

<347hp 211m 203mv 1666tnl (84.13%)> pinch
A diseased human shivers and suffers.
A diseased human's poison injures him.
Mursa wipes the dirt from his eyes.
A large guard is covered with bleeding wounds.

<347hp 196m 219mv 1666tnl (84.13%)> pinch
A large guard dodges your chomp.
Your chomp DISMEMBERS a large guard!
A large guard is gushing blood.

<347hp 196m 219mv 1666tnl (84.13%)> pinch

Tormin wakes and stands up.
A large guard is gushing blood.

<347hp 196m 219mv 1666tnl (84.13%)>
Tormin sings 'Ah! the voice of by gone days
Will come back again,
Whispering to the weary hearted
Many a soothing strain.'

The solemn melody gently numbs your pain.
A large guard is gushing blood.

<347hp 196m 219mv 1666tnl (84.13%)> a massive bombardier beetle's group:
<31 Shf> A massive bombardier beetle 100% hp 32% mana 59% mv 185834 xp
<31 Asn> Mursa 67% hp 96% mana 100% mv 235742 xp
<29 Bar> Tormin 100% hp 42% mana 100% mv 196102 xp
A large guard is gushing blood.

<347hp 196m 219mv 1666tnl (84.13%)> You try and pinch a large guard between your mandibles.
Your pinching mandibles misses a large guard.
Your chomp DISMEMBERS a large guard!
Mursa is blinded by the dirt in his eyes!
A large guard's kicked dirt scratches Mursa.
A large guard is gushing blood.

<347hp 196m 219mv 1666tnl (84.13%)>
Mursa concentrates for a moment and bandages his wounds.
A large guard is gushing blood.

<347hp 196m 219mv 1666tnl (84.13%)>
A large guard dodges your chomp.
Your chomp EVISCERATES a large guard!
A large guard is gushing blood.

<347hp 196m 219mv 1666tnl (84.13%)>
Mursa fails to execute a joint lock on a large guard.
Mursa's kotegaeshi misses a large guard.
A large guard is gushing blood.

<347hp 196m 219mv 1666tnl (84.13%)> pinch

Tormin sings 'Ah! the voice of by gone days
Will come back again,
Whispering to the weary hearted
Many a soothing strain.'

The solemn melody gently numbs your pain.
A large guard is gushing blood.

<347hp 196m 219mv 1666tnl (84.13%)>
Your chomp MASSACRES a large guard!
A large guard dodges your chomp.
Your chomp DISMEMBERS a large guard!
Mursa's punch EVISCERATES a large guard!
A large guard is gushing blood.

<347hp 196m 219mv 1666tnl (84.13%)>
Your chomp DISMEMBERS a large guard!
Your chomp EVISCERATES a large guard!
Mursa's punch EVISCERATES a large guard!
A large guard's slash decimates Mursa!
A large guard is gushing blood.

<347hp 196m 219mv 1666tnl (84.13%)> You try and pinch a large guard between your mandibles.
Your pinching mandibles misses a large guard.
A large guard is gushing blood.

<347hp 196m 219mv 1666tnl (84.13%)>
Mursa grabs hold of a large guard's wrist and twists it violently!
Mursa's kotegaeshi DISMEMBERS a large guard!
A large guard is writhing in agony.

<347hp 196m 219mv 1666tnl (84.13%)>
Tormin sings 'Ah! the voice of by gone days
Will come back again,
Whispering to the weary hearted
Many a soothing strain.'

The solemn melody gently numbs your pain.
A large guard is writhing in agony.

<347hp 196m 219mv 1666tnl (84.13%)>
Your chomp MASSACRES a large guard!
Mursa's punch misses a large guard.
A large guard is writhing in agony.

<347hp 196m 219mv 1666tnl (84.13%)> pinch

A large guard dodges your chomp.
Your chomp DISMEMBERS a large guard!
Mursa's punch EVISCERATES a large guard!
Mursa's punch maims a large guard!
A large guard is writhing in agony.

<347hp 196m 219mv 1666tnl (84.13%)>
Mursa grabs hold of a large guard's wrist and twists it violently!
Mursa's kotegaeshi DISMEMBERS a large guard!
A large guard is writhing in agony.

<347hp 196m 219mv 1666tnl (84.13%)>
Tormin sings 'Ah! the voice of by gone days
Will come back again,
Whispering to the weary hearted
Many a soothing strain.'

The solemn melody gently numbs your pain.
Your chomp DISMEMBERS a large guard!
A large guard dodges your chomp.
Mursa's punch EVISCERATES a large guard!
A large guard is convulsing on the ground.

<347hp 196m 219mv 1666tnl (84.13%)> You try and pinch a large guard between your mandibles.
Your pinching mandibles misses a large guard.
A large guard is convulsing on the ground.

<347hp 196m 219mv 1666tnl (84.13%)>
Your chomp misses a large guard.
A large guard dodges your chomp.
Mursa's punch maims a large guard!
Mursa's punch DISMEMBERS a large guard!
Charging forward, a large guard loses his balance and falls when Mursa avoids him.
A large guard's bash misses Mursa.
A large guard is convulsing on the ground.

<347hp 196m 219mv 1666tnl (84.13%)>
Mursa grabs hold of a large guard's wrist and twists it violently!
Mursa's kotegaeshi DISMEMBERS a large guard!
A large guard is convulsing on the ground.

<347hp 196m 219mv 1666tnl (84.13%)> a
Your chomp DISMEMBERS a large guard!
Mursa's punch misses a large guard.
A large guard is convulsing on the ground.

<347hp 196m 219mv 1666tnl (84.13%)> forms

A large guard dodges your chomp.
A large guard dodges your chomp.
A large guard's slash devastates Mursa!
A large guard is convulsing on the ground.

<347hp 196m 219mv 1666tnl (84.13%)> aff

It starts to rain.
A diseased human shivers and suffers.
A diseased human's poison injures him.
You no longer resist blows.
Your memories of the Chant of Resilience begin to fade.
Mursa wipes the dirt from his eyes.
A large guard is convulsing on the ground.

<347hp 181m 235mv 1666tnl (84.13%)> You can shapeshift into the following:
Form Family Attack Type Skill
Level 14: Anteater xenarthra suction Confident
Level 20: Scorpion arthropod sting Confident
Level 24: Mustang equine beating Confident
Level 29: Bombardier beetle arthropod chomp Confident
Level 31: Stink badger rodent claw Skilled
A large guard is convulsing on the ground.

<347hp 181m 235mv 1666tnl (84.13%)> You are affected by:
Song: 'canticle of the gods' modifies save vs spell by -10 for 21 hours.
Song: 'canticle of the gods' modifies hit roll by 4 for 21 hours.
Spell: 'giant strength' modifies strength by 4 for 13 hours.
Song: 'charismatic prelude' modifies charisma by 1 for 7 hours.
Song: 'battaglia' modifies damage roll by 6 for 5 hours.
Song: 'battaglia' modifies hit roll by 6 for 5 hours.
Spell: 'haste' modifies dexterity by 3 for 3 hours.
Physical effect: 'form bonus' modifies constitution by 1 for -1 hours.
Physical effect: 'form bonus' modifies strength by 1 for -1 hours.
A large guard is convulsing on the ground.

<347hp 181m 235mv 1666tnl (84.13%)>
Tormin goes to sleep.
A large guard is convulsing on the ground.

<347hp 181m 235mv 1666tnl (84.13%)>
Mursa grabs hold of a large guard's wrist and twists it violently!
With a sickening crunch, Mursa applies kotegaeshi to a large guard's wrist!
Mursa's kotegaeshi DISMEMBERS a large guard!
A large guard is convulsing on the ground.

<347hp 181m 235mv 1666tnl (84.13%)>
Tormin wakes and stands up.
A large guard is convulsing on the ground.

<347hp 181m 235mv 1666tnl (84.13%)>
Your chomp DISMEMBERS a large guard!
Your chomp DISMEMBERS a large guard!
A large guard's slash MUTILATES Mursa!
A large guard is convulsing on the ground.

<347hp 181m 235mv 1666tnl (84.13%)> pinch
You try and pinch a large guard between your mandibles.
Your pinching mandibles misses a large guard.
A large guard is convulsing on the ground.

<347hp 181m 235mv 1666tnl (84.13%)>
Your chomp DISMEMBERS a large guard!
A large guard is DEAD!!
You receive 708 experience points.
A large guard's heart is torn from his chest.


I didnt hit any pinches out of all the attempts. And thats all I really have beyond some acid spray which does who knows? nothing every 3 ticks?

There are two things that play into how successful you are with a pinch, and one of them is how confident you are in your form. That is the biggest factor, so my guess is that you recently got this form.

So long, and thanks for all the fish!

ntnt

I added some debugging and verified it once again...if you were at 100% in the form you've got about a 75% chance to hit a pinch.

So long, and thanks for all the fish!

...in the log

Level 29: Bombardier beetle arthropod chomp Confident

He's confident in the form. Isn't that enough to make it more than 0% chance