Flying

When Abhorrent Overlord enters, create a number of 1/1 black Harpy creature tokens with flying equal to your devotion to black. (Each in the mana costs of permanents you control counts toward your devotion to black.)

At the beginning of your upkeep, sacrifice a creature.

Prevent the next X damage that would be dealt to target creature this turn, where X is your devotion to white. If damage is prevented this way, Acolyte's Reward deals that much damage to any target. (Each in the mana costs of permanents you control counts toward your devotion to white.)

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

When Aegis Angel enters, another target permanent gains indestructible for as long as you control Aegis Angel. (Effects that say "destroy" don't destroy it. A creature with indestructible can't be destroyed by damage.)

Strive — This spell costs more to cast for each target beyond the first.

Any number of target creatures each get +1/+1 and gain flying until end of turn.

Aeronaut Tinkerer has flying as long as you control an artifact. (It can't be blocked except by creatures with flying or reach.)

Constellation — Whenever Agent of Erebos or another enchantment you control enters, exile target player's graveyard.

Deathtouch

Heroic — Whenever you cast a spell that targets Agent of the Fates, each opponent sacrifices a creature.

+1: Until end of turn, up to one target creature gets +1/+1 and gains first strike, vigilance, and lifelink.

−2: Put a +1/+1 counter on each creature you control and a loyalty counter on each other planeswalker you control.

−7: You get an emblem with "If a source would deal damage to you or a planeswalker you control, prevent all but 1 of that damage."

Strive — This spell costs more to cast for each target beyond the first.

Any number of target creatures each get +1/+1 and gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.)

Heroic — Whenever you cast a spell that targets Akroan Conscriptor, gain control of another target creature until end of turn. Untap that creature. It gains haste until end of turn.

Whenever Akroan Hoplite attacks, it gets +X/+0 until end of turn, where X is the number of attacking creatures you control.

Heroic — Whenever you cast a spell that targets Akroan Line Breaker, Akroan Line Breaker gets +2/+0 and gains intimidate until end of turn. (It can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Vigilance

: Creatures you control get +1/+0 until end of turn.

Whenever a creature an opponent controls dies, Altac Bloodseeker gets +2/+0 and gains first strike and haste until end of turn. (It deals combat damage before creatures without first strike, and it can attack and as soon as it comes under your control.)

First strike, vigilance

Heroic — Whenever you cast a spell that targets Anax and Cymede, creatures you control get +1/+1 and gain trample until end of turn.

Anger of the Gods deals 3 damage to each creature. If a creature dealt damage this way would die this turn, exile it instead.

Heroic — Whenever you cast a spell that targets Anthousa, Setessan Hero, up to three target lands you control each become 2/2 Warrior creatures until end of turn. They're still lands.

Enchant creature

Enchanted creature can't be blocked.

Whenever enchanted creature attacks, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Reach

: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)

When Arbor Colossus becomes monstrous, destroy target creature with flying an opponent controls.

Creatures you control have first strike.

Creatures your opponents control lose first strike and can't have or gain first strike.

Creatures you control have deathtouch.

Creatures your opponents control lose deathtouch and can't have or gain deathtouch.

Heroic — Whenever you cast a spell that targets Arena Athlete, target creature an opponent controls can't block this turn.

Whenever equipped creature attacks, put a +1/+1 counter on it.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

Destroy target artifact or enchantment. Scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

+2: Exile the top three cards of target opponent's library.

−X: Put a creature card with mana value X exiled with Ashiok, Nightmare Weaver onto the battlefield under your control. That creature is a Nightmare in addition to its other types.

−10: Exile all cards from all opponents' hands and graveyards.

Enchant creature

Enchanted creature gets +1/+3 and has deathtouch. (Any amount of damage it deals to a creature is enough to destroy it.)

: Regenerate Asphodel Wanderer.

Astral Cornucopia enters with X charge counters on it.

: Choose a color. Add one mana of that color for each charge counter on Astral Cornucopia.

Flying, vigilance

: Prevent all damage that would be dealt to another target creature this turn by sources of the color of your choice.

: Prevent all damage that would be dealt to target player or planeswalker this turn by sources of the color of your choice.

Destroy all enchantments.

When Banishing Light enters, exile target nonland permanent an opponent controls until Banishing Light leaves the battlefield.

Enchant creature

Enchanted creature has double strike. (It deals both first-strike and regular combat damage.)

Each instant and sorcery spell you cast costs less to cast for each creature it targets.

Heroic — Whenever you cast a spell that targets Battlefield Thaumaturge, Battlefield Thaumaturge gains hexproof until end of turn.

Target creature gets +2/+2 until end of turn. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Sliver creatures you control have menace. (They can't be blocked except by two or more creatures.)

Whenever a creature you control deals combat damage to a player, you may draw a card.

, : Creatures your opponents control attack this turn if able.

When Black Cat dies, target opponent discards a card at random.

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Strive — This spell costs more to cast for each target beyond the first.

Any number of target creatures can't block this turn.

Heroic — Whenever you cast a spell that targets Bloodcrazed Hoplite, put a +1/+1 counter on it.

Whenever a +1/+1 counter is put on Bloodcrazed Hoplite, remove a +1/+1 counter from target creature an opponent controls.

Bolt of Keranos deals 3 damage to any target. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Flash

Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Enchanted creature gets +4/+2.

Whenever Borderland Marauder attacks, it gets +2/+0 until end of turn.

Boulderfall deals 5 damage divided as you choose among any number of targets.

When Brain Maggot enters, target opponent reveals their hand and you choose a nonland card from it. Exile that card until Brain Maggot leaves the battlefield.

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

When Breaching Hippocamp enters, untap another target creature you control.

Enchant creature

Enchanted creature has ": This creature deals damage equal to its power to any target."

Counter target spell.

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

Carrion Crow enters tapped.