Rock Hydra [Alpha Edition] Future Trunks Saga and select that 1 Fusion

and select that 1 Fusion Monster from your Fusion Deck

You can target 1 Plant monster you control

Special Summon them

Set: Sun & Moon: Guardians Rising Type: Fighting Rarity: Secret Rare Retreat cost: Colorless

Rock Hydra [Alpha Edition] Future Trunks Saga and select that 1 FusionSet: Alpha Edition Type: Creature Hydra Rarity: Rare Cost: {X}{R}{R} Rock Hydra enters the battlefield with X +1 +1 counters on it. For each 1 damage that would be dealt to Rock Hydra, if it has a +1 +1 counter on it, remove a +1 +1 counter from it and prevent that 1 damage. {R}: Prevent the next 1 damage that would be dealt to Rock Hydra this turn. {R}{R}{R}: Put a +1 +1 counter on Rock Hydra. Activate only during your upkeep.