Ashnod's Altar [Commander Masters] Urza's Mine and has "Whenever a player

and has "Whenever a player casts a spell or a creature attacks

Set: Modern Horizons 2 Type: Artifact Creature — Human Soldier Rarity: Rare Cost: {W} Whenever an opponent casts their first noncreature spell each turn

and the doom they had wrought in his name

Urza exploited nature to power his war machines

Ashnod's Altar [Commander Masters] Urza's Mine and has "Whenever a playerSet: Commander Masters Type: Artifact Rarity: Uncommon Cost: {3} Sacrifice a creature: Add CC to your mana pool. "If you work at saving up carcasses, you notice how the joints fit, how the nerves are arrayed, and how the skin peels back." Ashnod, to Tawnos