We need diminishing returns in this game.
If a creature stuns more than twice in one game (full game) it needs less chance to stun for the remainder of the game.
Same goes with evade. If your team has evaded a total of 3/4 times there should be a diminishing return on that as well that lessen that chance.
I believe it would help a bit with the insane RNG where someone has over 8 evades in one game…