Siren's Call [Alpha Edition] Rivals of Ixalan I didn't think Mammoths could

I didn't think Mammoths could ever hold a candle to a well-trained battle horse

Set: Commander 2014 Type: Land Rarity: Rare Emeria

but they're easy to catch

Set: Eldritch Moon Type: Legendary Creature — Eldrazi Rarity: Mythic Cost: {13} This spell costs {1} less to cast for each card type among cards in your graveyard

the ankle stone is connected to the leg stone

Siren's Call [Alpha Edition] Rivals of Ixalan I didn't think Mammoths couldSet: Alpha Edition Type: Instant Rarity: Uncommon Cost: {U} Cast this spell only during an opponent's turn, before attackers are declared. Creatures the active player controls attack this turn if able. At the beginning of the next end step, destroy all non Wall creatures that player controls that didn't attack this turn. Ignore this effect for each creature the player didn't control continuously since the beginning of the turn.