Risky Ruins
Trainer from Mega Evolution set
Risky Ruins
Stadium Trainer
Whenever any player puts a Basic non-Darkness Pokémon onto their Bench during their turn, place 2 damage counters on that Pokémon.
You may play only 1 Stadium card during your turn. Put it next to the Active Spot, and discard it if another Stadium comes into play. A Stadium with the same name can't be played.