Mana Crypt [Eternal Masters] Battle for Zendikar Prerelease Promos you may cast that card

you may cast that card and you may spend mana as though it were mana of any color to cast that spell

If damage is prevented this way

Set: Antiquities Type: Creature — Demon Rarity: Rare Cost: {4}{B}{B} Flying (This creature can't be blocked except by creatures with flying or reach

{T}: Take an extra turn after this one

if you control seven or more lands

Mana Crypt [Eternal Masters] Battle for Zendikar Prerelease Promos you may cast that cardSet: Eternal Masters Type: Artifact Rarity: Mythic Cost: {0} At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you. {T}: Add {C}{C}.