If you want to style for some meter or your opponent is at half of their health, you can do the following in Cryomancer:
JIP, F33, EX Hammer, NJP, B1, 2, EX Ice Ball, F42, 1+3. Does over 40% if I recall correctly.
Also a great Brutality finisher (Pick Your Brain) in Cryo variation if you've unlocked it.