There are also 5 cards that make an opponent(s) sacrifice Creatures in: Vona's Hunger, Crackling Doom, Anowon, the Ruin Sage, Henrika Domnathi, and Gatekeeper of Malakir
This allows you to select a character that has been banished and bring them back into your hand
Sure, you have to sacrifice this card in order to get that extra turn but combine this with some enchantment or permanent recursion/reanimation, and youve got the makings of an easy infinite turn loop
You can give out Realmwalker for sales of the following products: Set Booster Displayall WPN members can sell starting February 5* Draft Booster Displayall WPN members can sell starting January 29 when your store opens Collector Booster Display WPN Premium members can sell Prerelease Early Sale Promotion allocation boxes starting January 29 when your store opens
This is a simple implementation of the idea, but it has huge scope
It provides both black and blue mana and surveils when it enters play