As long as Tentacruel has any React Energy cards attached to it, prevent all effects, including damage, done to any of your Tentacruel in play by attacks from your opponent's Pokémon-ex.
Attack: Water Arrow
Damage: 20
Choose 1 of your opponent's Pokémon. This attack does 20 damage to that Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)
Attack: Fury Strikes
Damage: 0
- 60
Flip 3 coins. This attack does 20 damage times the number of heads.