Flying

: Creatures you control gain shroud until end of turn. (They can't be the targets of spells or abilities.)

Apocalypse Hydra enters the battlefield with X +1/+1 counters on it. If X is 5 or more, it enters the battlefield with an additional X +1/+1 counters on it.

, Remove a +1/+1 counter from Apocalypse Hydra: It deals 1 damage to any target.

Enchant creature

Enchanted creature has flying, first strike, and vigilance.

Flying

Domain — Aven Trailblazer's toughness is equal to the number of basic land types among lands you control.

: Target creature with power 5 or greater gains vigilance until end of turn.

At the beginning of your upkeep, if you control a black permanent, you may put a +1/+1 counter on Bloodhall Ooze.

At the beginning of your upkeep, if you control a green permanent, you may put a +1/+1 counter on Bloodhall Ooze.

When Brackwater Elemental attacks or blocks, sacrifice it at the beginning of the next end step.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Exile target black or red permanent.

Trample

When Child of Alara dies, destroy all nonland permanents. They can't be regenerated.

Search your library for a white card, a blue card, a black card, a red card, and a green card. Reveal those cards, put them into your hand, then shuffle.

Enchant red or green creature

Enchanted creature doesn't untap during its controller's untap step.

Counter target noncreature spell. Its controller loses 2 life.

Creatures your opponents control get -1/-0.

Dark Temper deals 2 damage to target creature. If you control a black permanent, destroy the creature instead.

Domain — Target creature gets -1/-1 until end of turn for each basic land type among lands you control.

: Dreadwing gets +3/+0 and gains flying until end of turn.

Reach (This creature can block creatures with flying.)

As long as you control a red permanent, Ember Weaver gets +1/+0 and has first strike.

Flying

At the beginning of your upkeep, return an artifact you control to its owner's hand.

: Add one mana of any color that a land an opponent controls could produce.

Flying

Whenever another creature leaves the battlefield, you may have target player mill two cards.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Fiery Fall deals 5 damage to target creature.

Basic landcycling (, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

: Fleshformer gets +2/+2 and gains fear until end of turn. Target creature gets -2/-2 until end of turn. Activate only during your turn. (A creature with fear can't be blocked except by artifact creatures and/or black creatures.)

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

, : Draw a card, then discard a card.

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

: Destroy target creature that dealt damage to you this turn.

Flash

Devour 1 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with that many +1/+1 counters on it.)

, Sacrifice a land: Put a +1/+1 counter on Goblin Razerunners.

At the beginning of your end step, you may have Goblin Razerunners deal damage equal to the number of +1/+1 counters on it to target player or planeswalker.

When Grixis Slavedriver leaves the battlefield, create a 2/2 black Zombie creature token.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Devour 1 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with that many +1/+1 counters on it.)

Hellkite Hatchling has flying and trample if it devoured a creature.

Ignite Disorder deals 3 damage divided as you choose among one, two, or three target white and/or blue creatures.

Trample

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Shroud (This creature can't be the target of spells or abilities.)

When Kaleidostone enters the battlefield, draw a card.

, , Sacrifice Kaleidostone: Add .

Knight of the Reliquary gets +1/+1 for each land card in your graveyard.

, Sacrifice a Forest or Plains: Search your library for a land card, put it onto the battlefield, then shuffle.

: Kranioceros gets +0/+3 until end of turn.

Flying

Whenever Maelstrom Archangel deals combat damage to a player, you may cast a spell from your hand without paying its mana cost.

Flying

When Malfegor enters the battlefield, discard your hand. Each opponent sacrifices a creature for each card discarded this way.

Domain — Equipped creature gets +1/+1 for each basic land type among lands you control.

Equip

Prevent all noncombat damage that would be dealt to creatures you control.

, , Return an artifact you control to its owner's hand: You may put an artifact card from your hand onto the battlefield.

Vigilance, trample

Whenever Meglonoth blocks a creature, Meglonoth deals damage to that creature's controller equal to Meglonoth's power.

Trample

At the beginning of your upkeep, if you control a blue permanent, you may create a token that's a copy of Mirror-Sigil Sergeant.

Vigilance

, : Target creature can't block this turn.

, : Target creature blocks this turn if able.

Protection from artifacts

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

: Add , , or .

, : You gain 5 life.

, : Draw a card, then discard a card.

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

, : Obelisk of Alara deals 3 damage to target player or planeswalker.

, : Target creature gets +4/+4 until end of turn.

First strike

: Until end of turn, Paragon of the Amesha becomes an Angel, gets +3/+3, and gains flying and lifelink.

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Protection from everything

If Progenitus would be put into a graveyard from anywhere, reveal Progenitus and shuffle it into its owner's library instead.

Haste

, : Create a 3/1 red Elemental creature token with haste.

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

When Rhox Bodyguard enters the battlefield, you gain 3 life.

When Rotting Rats enters the battlefield, each player discards a card.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)