@alternative_backup: Stats for Bernkastel?
@Carter_esque: Can spam the creation and destruction of universes and tank the same. Can make anything happen as long as the probability of that happening is higher than 0% (even if it's 0.000000000000000001 or something like that). General high tire universal reality warping and MFTL speed at the very least (might as well be beyond the concept of speed, also lacks the concept of pain among other things).
I'll go with stalemate. Even though she has the ability to do something with less than 0% chance mr.mxy literally did the impossible and came out into the real world. He can't be defeated by her because he exists of his own accord. He is his own beginning and there is no end to him. Praise the aeon worm. His gutsack nourishes. His walls protect.
Bern wins for being possibly omniversal. she talks about visiting other multiverses like Ghost in the Shell and Children of Paradise. It means Lambda and Bern can travel outside the "When they Cry" verse and into a different one from all of existence.
The fact that she's even aware of these other universe's existence is impressive