Elder Gargaroth [Core Set 2021 Prerelease Promos] 127 Set: Secret Slayers Card type:

Set: Secret Slayers Card type: Tuner/Effect Monster Rarity: Secret Rare Attack: 100 Defense: 2100 If you control a Rock monster

Dragon Lord of Dark World"

Set: XY: Roaring Skies Type: Psychic Rarity: Ultra Rare Retreat cost: Colorless

it produces three times as much of that mana instead

Then activate the appropriate effects

Elder Gargaroth [Core Set 2021 Prerelease Promos] 127 Set: Secret Slayers Card type:Set: Core Set 2021 Prerelease Promos Type: Creature Beast Rarity: Mythic Cost: {3}{G}{G} Vigilance, reach, trample Whenever Elder Gargaroth attacks or blocks, choose one Create a 3 3 green Beast creature token. You gain 3 life. Draw a card.