Ydwen Efreet [Arabian Nights] Magic 2014 Set: Homelands Type: World Enchantment

Set: Homelands Type: World Enchantment Rarity: Rare Cost: {2}{B}{B} At the beginning of your upkeep

Set: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {3} Lands you control have "{T}: Add one mana of any color

If a nontoken creature would enter the battlefield and it wasn't cast

Some fiendish mage had created a horrifying wall of living flesh

you control the player while that spell is resolving

Ydwen Efreet [Arabian Nights] Magic 2014 Set: Homelands Type: World EnchantmentSet: Arabian Nights Type: Creature Efreet Rarity: Rare Cost: {R}{R}{R} Whenever Ydwen Efreet blocks, flip a coin. If you lose the flip, remove Ydwen Efreet from combat and it can't block this turn. Creatures it was blocking that had become blocked by only Ydwen Efreet this combat become unblocked.