Cinder Barrens [Commander 2017] HGSS11 Set: Legendary Collection 2 Card

Set: Legendary Collection 2 Card type: Fusion/Effect Monster Rarity: Super Rare Attack: 2500 Defense: 2000 "Elemental HERO Neos" + "Neo-Spacian Aqua Dolphin" Must first be Special Summoned (from your Extra Deck) by shuffling the above cards you control into the Deck

that have Xyz Material Once per turn: You can Special Summon Rank 9 or lower "Number" monsters with 3000 or less ATK that have different Ranks from each other from your Extra Deck

but how could that be

that monster gains 600 ATK

you can remove from play 1 DARK monster from your Graveyard to Special Summon 1 DARK monster from your Graveyard

Cinder Barrens [Commander 2017] HGSS11 Set: Legendary Collection 2 CardSet: Commander 2017 Type: Land Rarity: Uncommon Cinder Barrens enters the battlefield tapped. {T}: Add {B} or {R}. A mudflow swallowed the lowlands years ago. All that remains are a bottomless mire and an endless rain of ash.