I don't know if someone has suggested this yet, but if you're basing Jill on MvC2 her unique tactic should be switching between the different grenade ammo available in Nemesis: Flame, Ice, and Acid. Maybe Flame makes a fire on the ground if it misses and Acid poisons, I dunno.
Too deep in yearning we need
something to hold, and something to keep
Innocent eyes could not realize
the meaning of "destiny"
But someday I promise that
you’ll start to notice what’s there on your shoulders someday -
Wings that are strong,
they will guide you along to the future that holds your fate!
Let me tell you a cruel angel’s thesis -
Flying high from the window, finding egress
There is something betraying all my memories,
burning pathos, emotion overwhelming!