Wall of Stone [Foreign Black Border] Hydra Dog The party was going strong

The party was going strong for nearly an hour past midnight—then all of a sudden it just petered out

Whenever you sacrifice a green creature

Set: Apocalypse Type: Creature — Human Soldier Rarity: Uncommon Cost: {3}{W} First strike

Set: Magic Origins Type: Creature — Elemental Rarity: Common Cost: {2}{U} {U}: Watercourser gets +1/-1 until end of turn

Set: Zendikar Type: Creature — Vampire Spirit Rarity: Rare Cost: {B}{B} Bloodghast can't block

Wall of Stone [Foreign Black Border] Hydra Dog The party was going strongSet: Foreign Black Border Type: Creature Wall Rarity: Uncommon Cost: {1}{R}{R} Defender (This creature can't attack.)