Urza's Power Plant (Boiling Rock) [Antiquities] Human Rebel (It can't be blocked except

(It can't be blocked except by creatures with horsemanship

that player chooses target player who controls more creatures than they do and is their opponent

The same is true for creature spells you control and creature cards you own that aren't on the battlefield

Sometimes quantity

"First through the Riftstone was Genesis—and the world was lifeless no more

Urza's Power Plant (Boiling Rock) [Antiquities] Human Rebel (It can't be blocked exceptSet: Antiquities Type: Land Urza's Power Plant Rarity: Uncommon {T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead. Artifact construction required immense resources.