Siren's Call [Limited Edition Alpha] Oath of the Gatewatch Prerelease Promos Rishada is the gateway to

Rishada is the gateway to free trade—but the key will cost you

Set: Gateway 2007 Type: Instant Rarity: Rare Cost: {U}{U} Return target permanent to its owner's hand

Set: Worldwake Prerelease Promos Type: Creature — Vampire Shaman Rarity: Rare Cost: {B}{B} Whenever Kalastria Highborn or another Vampire you control dies

−X: Search your library for an artifact card with converted mana cost X or less and put it onto the battlefield

While it's phased out

Siren's Call [Limited Edition Alpha] Oath of the Gatewatch Prerelease Promos Rishada is the gateway toSet: Limited Edition Alpha 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.