Bone Shredder [Urza's Legacy] Demon Whenever Sapling of Colfenor attacks

Whenever Sapling of Colfenor attacks

Set: Masters 25 Type: Enchantment Rarity: Rare Cost: {1}{W} At the beginning of each opponent's end step

Set: Battlebond Type: Creature — Bird Warrior Rarity: Common Cost: {2}{U} Flying

sacrifice Arcades Sabboth unless you pay {G}{W}{U}

If it's greater

Bone Shredder [Urza's Legacy] Demon Whenever Sapling of Colfenor attacksSet: Urza's Legacy Type: Creature Phyrexian Minion Rarity: Uncommon Cost: {2}{B} Flying Echo {2}{B} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.) When Bone Shredder enters the battlefield, destroy target nonartifact, nonblack creature.