Umbreon

Cost: Colorless, Colorless

Flip a coin. If heads, this attack does 10 damage plus 20 more damage; if tails, this attack does 10 damage.

Cost: Darkness, Colorless, Colorless

During your opponent's next turn, if the Defending Pokémon tries to retreat, do 10 damage to it. (Don't apply Weakness and Resistance.)