Regal Sliver (Extended Art) [Commander Masters] Plant Centaur Whenever Guiltfeeder attacks and isn't

Whenever Guiltfeeder attacks and isn't blocked

Set: Judge Gift Cards 2018 Type: Creature — Merfolk Rarity: Rare Cost: {U}{U} Other Merfolk get +1/+1 and have islandwalk

Set: Magic 2010 Type: Artifact Rarity: Rare Cost: {5} {T}

Set: Dungeons & Dragons: Adventures in the Forgotten Realms Commander Type: Legendary Creature — Horror Rarity: Mythic Cost: {2}{W}{U}{B} When Nihiloor enters the battlefield

Set: Phyrexia: All Will Be One Commander Type: Creature — Phyrexian Beast Rarity: Rare Cost: {5}{G} Haste

Regal Sliver (Extended Art) [Commander Masters] Plant Centaur Whenever Guiltfeeder attacks and isn'tSet: Commander Masters Type: Creature Sliver Rarity: Rare Cost: {3}{W} Sliver creatures you control have When this creature enters the battlefield, Slivers you control get +1 +1 until end of turn if you're the monarch. Otherwise, you become the monarch.