Arcane Adaptation [Ixalan] Odyssey Set: Conflux Type: Enchantment —

Set: Conflux Type: Enchantment — Aura Rarity: Uncommon Cost: {3}{U}{B}{R} Enchant creature

We must believe that

Set: Magic 2015 Promos Type: Creature — Dragon Rarity: Rare Cost: {5}{R}{R} Flying

sacrifice Manta Ray

Set: Friday Night Magic 2016 Type: Enchantment Rarity: Rare Cost: {1}{B} {1}

Arcane Adaptation [Ixalan] Odyssey Set: Conflux Type: Enchantment —Set: Ixalan Type: Enchantment Rarity: Rare Cost: {2}{U} As Arcane Adaptation enters the battlefield, choose a creature type. Creatures you control are the chosen type in addition to their other types. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.