Sacred Foundry [Secret Lair Drop Series] SV64 where X is the mana

where X is the mana value of a commander you own on the battlefield or in the command zone

When Ulvenwald Hydra enters the battlefield

Set: Tempest Type: Land Rarity: Rare {T}: Add one mana of any type that a land you control could produce

Set: Aether Revolt Type: Artifact Creature — Construct Rarity: Rare Cost: {X}{X} Walking Ballista enters the battlefield with X +1/+1 counters on it

Sacred Foundry [Secret Lair Drop Series] SV64 where X is the manaSet: Secret Lair Drop Series Type: Land Mountain Plains Rarity: Rare ({T}: Add {R} or {W}.) As Sacred Foundry enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped. After the Consulate's defeat, the forges were opened to all. Now inventions pour forth from Ghirapur as freely as molten metal from the foundry.