Sunbird's Invocation [Ixalan] Plant Wall {0}: Enchanted creature becomes the

{0}: Enchanted creature becomes the color or colors of your choice

−1: Exile another target permanent you own

flip a coin

Set: Darksteel Type: Artifact Rarity: Uncommon Cost: {4} Whenever an opponent discards a card

They have "Sacrifice this creature: Add {C}

Sunbird's Invocation [Ixalan] Plant Wall {0}: Enchanted creature becomes theSet: Ixalan Type: Enchantment Rarity: Rare Cost: {5}{R} Whenever you cast a spell from your hand, reveal the top X cards of your library, where X is that spell's mana value. You may cast a spell with mana value X or less from among cards revealed this way without paying its mana cost. Put the rest on the bottom of your library in a random order.