Door of Destinies [Morningtide Promos] Rise of the Eldrazi Set: Amonkhet Invocations Type: Enchantment

Set: Amonkhet Invocations Type: Enchantment — Aura Rarity: Mythic Cost: {1}{U}{U} Enchant creature with mana value 2 or less

{U}{B}{B}{R}

Leviathan enters the battlefield tapped and doesn't untap during your untap step

and you may cast the copy without paying its mana cost

Numsgil did in Blog

Door of Destinies [Morningtide Promos] Rise of the Eldrazi Set: Amonkhet Invocations Type: EnchantmentSet: Morningtide Promos Type: Artifact Rarity: Rare Cost: {4} As Door of Destinies enters the battlefield, choose a creature type. Whenever you cast a spell of the chosen type, put a charge counter on Door of Destinies. Creatures you control of the chosen type get +1 +1 for each charge counter on Door of Destinies.