Winter team + rabbit is still strong, isnt it? I mean Winter's Little Helper
with Ice Lance, Call Blizzard and Gift of Winter's Veil, then Tiny Snowman
with Magic Hat (to diversify damage school), Call Blizzard and Deep Freeze. Accompanied by superfast rabbit (speed 340 is ideal) with Flurry, Dodge and Burrow.
Facing an elemental: get Rabbit in
Facing undead abilities: get Helper out
Facing mechanical: get Snowman in
Facing a flyer above 50%: get rabbit out