Sunbird's Invocation [Ixalan Prerelease Promos]

Sunbird's Invocation [Ixalan Prerelease Promos]Set: 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.

Put all revealed cards not cast this way on the bottom of your library in a random order

Angel spells and Human spells you cast cost {1} less to cast for each +1/+1 counter on Herald of War

I will see all of us take wing

Set: Fate Reforged Promos Type: Legendary Creature — Dragon Rarity: Rare Cost: {4}{U}{B} Flying

{U}{R}: Cromat gains flying until end of turn

A few aetherborn have discovered a way to sustain their own existences at the cost of an insatiable hunger for the life essence of other beings

then puts the rest into their graveyard

"It is Greven's mind manifest

"Justice is toothless without punishment

"Approach from behind

Dimir Doppelganger becomes a copy of that card

Set: Kaladesh Type: Legendary Land Rarity: Rare At the beginning of your upkeep