Primordial Tentacles

As long as this Pokémon is in the Active Spot, your opponent's Active Pokémon can't retreat.

Aqua Split

This attack also does 30 damage to 2 of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)

Omastar's sharp fangs could crush rock, but the Pokémon can attack only the prey that come within reach of its tentacles.

<strong>Ability — Primordial Tentacles</strong>
<br>As long as this Pokemon is in the Active Spot, your opponent's Active Pokemon can't retreat.