Cavern of Souls [Avacyn Restored] Rivals of Ixalan Ezuri's Brigade gets +4/+4 and

Ezuri's Brigade gets +4/+4 and has trample

You draw cards equal to the sacrificed creature's power

When Sylvan Messenger enters the battlefield

Set: Unlimited Edition Type: Creature — Wolf Rarity: Rare Cost: {G} Banding (Any creatures with banding

Set: Commander 2015 Type: Creature — Snake Shaman Rarity: Common Cost: {1}{G} Sacrifice Sakura-Tribe Elder: Search your library for a basic land card

Cavern of Souls [Avacyn Restored] Rivals of Ixalan Ezuri's Brigade gets +4/+4 andSet: Avacyn Restored Type: Land Rarity: Rare As Cavern of Souls enters the battlefield, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.