From my perspective, I had made every attept to be at peace
with Sylvan, as my real intention was to fight Tribunal. I had
been given the etched dragonscale pendant by a Sylvan because I
absolutely refused to fight Sylvans. I went to greet two Sylvans
who jumped me, but I continually fled, though they hunted me down
because I was in the shadow grove.
Here we have the situation that I cannot fathom. I'm not criticizing,
but I just don't understand how you could have reacted this way.

I say I'm willing to forgive the transgression, if you admit it was a
transgression, and give me my things back. You say no. You know I am an invoker, an the powers that I have that can be used to harm nature. Finally I say, give me my things back, or I will set the world on fire. Still, you won't give me my things back. So, to illustrate my powers, I set an incendiary cloud outside the rangers and said give me my things back, or the world will burn. You attack me at this point, so I set the grove on fire. My justification was thus... my 'allies' attacked and killed me, if they were willing to apologize, I'd let it go.
From what I can see, this is your POV.
Invoker has the power to be a deadly force against the wilds, but he does not wish to be. We just killed him because he has travelled with an Orc to kill Paladins (who are not our allies) on two occasions. Now, we can piss him off forever by not apologizing, or, we can get him to not destroy the wilds by appeasing him. We will decide not to return his things.
How do you, as a character justify the burning of (my incendiary cloud is up to 90%, mostly from usage in the wilds) thousands upon thousands of trees and forest creatures, just because I travelled with an orc on two separate occasions (which I has permission from Sassmi to do as long as I didn't attack Warders). Hell, I even killed Straklaw once. (Which I told you) Personally, I saw this as bad RP on the Warders part, and I have had three. It is my new opinion that Warders are worse for attacking non-caballed non-enemy people for kills than villagers are. I really tried to see how you could justify the whole thing, but I was at a loss, so please explain.