Defender

Aetherflame Wall can block creatures with shadow as though they didn’t have shadow.

{R}: Aetherflame Wall gets +1/+0 until end of turn.

Flash (You may cast this spell any time you could cast an instant.)

Enchant creature

Enchanted creature gets +1/+1, has reach, and can block creatures with shadow as though they didn’t have shadow. (Creatures with reach can block creatures with flying.)

Change the text of target spell or permanent by replacing all instances of one color word with another. (This effect lasts indefinitely.)

Flashback {1}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

{T}: Draw three cards.

{2}{U}{U}: Return Arcanis the Omnipotent to its owner’s hand.

{W}, Sacrifice Aurora Eidolon: Prevent the next 3 damage that would be dealt to any target this turn.

Whenever you cast a multicolored spell, you may return Aurora Eidolon from your graveyard to your hand.

Flying (This creature can’t be blocked except by creatures with flying or reach.)

When Aven Cloudchaser enters the battlefield, destroy target enchantment.

Azorius Herald can’t be blocked.

When Azorius Herald enters the battlefield, you gain 4 life.

When Azorius Herald enters the battlefield, sacrifice it unless {U} was spent to cast it.

Morph {X}{B}{B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

When Bane of the Living is turned face up, all creatures get -X/-X until end of turn.

You may choose not to untap Callous Oppressor during your untap step.

As Callous Oppressor enters the battlefield, an opponent chooses a creature type.

{T}: Gain control of target creature that isn’t of the chosen type for as long as Callous Oppressor remains tapped.

At the beginning of your upkeep, choose target nonland permanent you control and up to two target nonland permanents you don’t control. Destroy one of them at random.

Haste

Threshold — As long as seven or more cards are in your graveyard, Centaur Chieftain has “When Centaur Chieftain enters the battlefield, creatures you control get +1/+1 and gain trample until end of turn.”

As long as Centaur Omenreader is tapped, creature spells you cast cost {2} less to cast.

Flying

Whenever an opponent is dealt noncombat damage, Chandra’s Spitfire gets +3/+0 until end of turn.

Target creature gets +4/+2 and gains trample until end of turn.

Spend only black mana on X.

Consume Spirit deals X damage to any target and you gain X life.

Target creature gets -2/-2 until end of turn.

Doubtless One’s power and toughness are each equal to the number of Clerics on the battlefield.

Whenever Doubtless One deals damage, you gain that much life.

First strike

{W}{U}{B}{R}{G}: Until end of turn, Dragonsoul Knight becomes a Dragon, gets +5/+3, and gains flying and trample.

Shadow (This creature can block or be blocked by only creatures with shadow.)

At the beginning of your upkeep, sacrifice Drifter il-Dal unless you pay {U}.