Dark Omastar (Neo Destiny N4 19)

Dark Omastar — 70 HP — [W]
Stage 2 — Evolves from Dark Omanyte

[W] Prehistoric Water
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.

[W][C] Dark Tentacle: 30
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: [G]×2
resistance:
retreat: 2

Illus. Tomokazu Komiya
Neo Destiny — 19/105 — Rare

Nothing can escape once wrapped in its tentacles, which it uses for self-defense as well as to catch food.