N4 · 19 · English
Dark Omastar
Water · Stage 2 · 70 HP
Rare
Prehistoric Water
W
If your opponent has any evolved Pokémon in play, choose 1 of them and flip a coin. If heads, your opponent takes the highest Stage Evolution card on that Pokémon and shuffles it into his or her deck.
Dark Tentacle
30W · C
During your opponent's next turn, the Defending Pokémon can't evolve except from effects of attacks or Pokémon Powers. (Benching that Pokémon ends this effect.)
Weakness: Grass · Resistance: none · Retreat: 2
Illustrated by Tomokazu Komiya