Sunbird's Invocation [Ixalan Prerelease Promos] Equipment // Land puts it on the bottom

puts it on the bottom of their library

Set: Alpha Edition Type: Enchantment — Aura Rarity: Uncommon Cost: {G} Enchant creature

Set: Explorers of Ixalan Type: Instant Rarity: Rare Cost: {5}{W} Double target player's life total

and that player decides whether to flip again

When Oblivion Ring leaves the battlefield

Sunbird's Invocation [Ixalan Prerelease Promos] Equipment // Land puts it on the bottomSet: Ixalan Prerelease Promos 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.