I would really like a type of temp transformation ability, almost like going ssj.
The one I was thinking of was in stages, something similar to the soulfist class from lost ark.
It's basically a clickie that when activated, puts you into stage 1, costs 50 ki, at stage 1 you get +5 melee/ranged power, +5% attack/mov action boost speed. This lasts for 20 seconds, during this time you can either choose to let it finish, which will give you a debuff that lasts for 30 seconds and during this debuff you can't use that clikie again (I don't think it should have any other debuffs, maybe low stuff like you can't meditate during this time anymore).
At stage 2, you get +15 melee/ranged power, +10% attack/move actionboost, but 2x multiplier to costs to every ability, including going to the next stage. Lasts for 30 seconds. Again, you can choose to continue to next stage at any point, or it will finish and give you a debuff that lasts 45 seconds.
And this would go on up to stage 5 I think would be cap with a final boost of +40 melee/ranged power, 25% move/attack actionboost, 4x multiplier on everything, lasting 1 minute, but would give you a debuff lasting 3 minutes.
Maybe make it a final capstone on the tree, not sure which one though, henshin seems most appropriate? Or shintao?