Wall of Bone [Alpha Edition] Cockatrice except it doesn't copy that

except it doesn't copy that creature's color and it has "At the beginning of your upkeep

Set: Urza's Saga Type: Creature — Human Druid Rarity: Rare Cost: {1}{G} Shroud (This creature can't be the target of spells or abilities

Set: Rivals of Ixalan Prerelease Promos Type: Legendary Creature — Elder Dinosaur Rarity: Rare Cost: {5}{U}{U} This spell can't be countered

it's a matter of gibbon take

If you sacrifice an Island this way

Wall of Bone [Alpha Edition] Cockatrice except it doesn't copy thatSet: Alpha Edition Type: Creature Skeleton Wall Rarity: Uncommon Cost: {2}{B} Defender (This creature can't attack.) {B}: Regenerate Wall of Bone. (The next time this creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.) The Wall of Bone is said to be an aspect of the Great Wall in Hel, where the bones of all sinners wait for Ragnarok, when Hela will call them forth for the final battle.