Tsunami (shaman, druid, invoker) - fights on water are pretty rare and you almost always have a better damage option even if not maybe an area damage option

Drown - maybe let this work (not as well) in rooms that have a water source in them like a spring or fountain, all it ever ends up being used for is spamming, its not even useful for ranking since almost all mobs in places it can be used are immune to water damage.

Shifter partial shifts - while in theory they could be worthwhile if you want to use wands/staves/scrolls out of form at higher ranks the fact you spend almost your whole life in form generally means you have a 75% parry skill so you fall over like a wet blanket without overprepping in any case you would actually want to use out of form tactics.