The official Japanese Pokemon Twitter has revealed Froslass from Pokekyun Collection. Thanks goes to Ryah R. for the translation!
Ability: Drag Down
If this Pokemon is Knocked Out by damage from an opponent’s attack, flip a coin. If heads, the Attacking Pokemon is Knocked Out.
[C][C][C] Snow Droplets: Place 4 damage counters on your opponent’s Pokemon in any way you like.
Weakness: Metal (x2)