General Tazri [Oath of the Gatewatch Prerelease Promos] Future Sight Set: Planeshift Type: Land —

Set: Planeshift Type: Land — Lair Rarity: Uncommon When Rith's Grove enters the battlefield

{T}: You may exile an instant or sorcery card with mana value X from your hand

Set: Urza's Saga Type: Sorcery Rarity: Rare Cost: {2}{B}{B} Sacrifice any number of artifacts

but all he'd say was

General Tazri [Oath of the Gatewatch Prerelease Promos] Future Sight Set: Planeshift Type: Land —Set: Oath of the Gatewatch Prerelease Promos Type: Legendary Creature Human Ally Rarity: Mythic Cost: {4}{W} When General Tazri enters the battlefield, you may search your library for an Ally creature card, reveal it, put it into your hand, then shuffle. {W}{U}{B}{R}{G}: Ally creatures you control get +X +X until end of turn, where X is the number of colors among those creatures.