Grass Energy (99/102) [Base Set Unlimited] 141 You can only activate 1

You can only activate 1 "One-Time Passcode" per turn

you can Special Summon 2 "Hydrogeddons" and 1 "Oxygeddon" from your Graveyard

Set: Hidden Arsenal 2 Card type: Synchro/Effect Monster Rarity: Secret Rare Attack: 2900 Defense: 2600 1 Tuner + 2 or more non-Tuner monsters This card cannot be Special Summoned except by Synchro Summon

increase the ATK and DEF of all monsters that includes "Gravekeeper's" in their card name by 500 points

it gains ATK equal to the total ATK of all Level 2 and lower monsters on the field

Grass Energy (99/102) [Base Set Unlimited] 141 You can only activate 1Set: Base Set Unlimited Type: Basic Energy Rarity: Common