Sunbird's Invocation [Ixalan] Plant Wall Set: Darksteel Type: Artifact Rarity:

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

−1: Exile another target permanent you own

Whenever another creature dies

Set: From the Vault: Relics Type: Artifact Rarity: Mythic Cost: {1} {T}: Add {C}{C}

They have "Sacrifice this creature: Add {C}

Sunbird's Invocation [Ixalan] Plant Wall Set: Darksteel Type: Artifact Rarity:Set: 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.