Incinerate

Incinerate deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn.

Azimaet Drake

Flying
{U}: This creature gets +1/+0 until end of turn. Activate only once each turn.

Harmattan Efreet

Flying
{1}{U}{U}: Target creature gains flying until end of turn.

Meddle

If target spell has only one target and that target is a creature, change that spell's target to another creature.

Flame Elemental

{R}, {T}, Sacrifice this creature: It deals damage equal to its power to target creature.

Bay Falcon

Burning Palm Efreet

{1}{R}{R}: This creature deals 2 damage to target creature with flying and that creature loses flying until end of turn.

Goblin Scouts

Create three 1/1 red Goblin Scout creature tokens with mountainwalk. (They can't be blocked as long as defending player controls a Mountain.)

Dissipate

Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Island

Wildfire Emissary

Protection from white
{1}{R}: This creature gets +1/+0 until end of turn.

Pyric Salamander

{R}: This creature gets +1/+0 until end of turn. Sacrifice this creature at the beginning of the next end step.

Kaervek's Torch

As long as Kaervek's Torch is on the stack, spells that target it cost {2} more to cast.
Kaervek's Torch deals X damage to any target.

Suq'Ata Firewalker

This creature can't be the target of red spells or abilities from red sources.
{T}: This creature deals 1 damage to any target.

Boomerang

Return target permanent to its owner's hand.

Subterranean Spirit

Protection from red
{T}: This creature deals 1 damage to each creature without flying.

Power Sink

Counter target spell unless its controller pays {X}. If that player doesn't, they tap all lands with mana abilities they control and lose all unspent mana.

Dream Cache

Draw three cards, then put two cards from your hand both on top of your library or both on the bottom of your library.

Vaporous Djinn

Flying
At the beginning of your upkeep, this creature phases out unless you pay {U}{U}. (While it's phased out, it's treated as though it doesn't exist. It phases in before you untap during your next untap step.)

Dream Fighter

Whenever this creature blocks or becomes blocked by a creature, this creature and that creature phase out. (While they're phased out, they're treated as though they don't exist. Each one phases in before its controller untaps during their next untap step.)

Mystical Tutor

Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.

Talruum Minotaur

Teferi's Drake

Flying
Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.)

Mist Dragon

{0}: This creature gains flying. (This effect lasts indefinitely.)
{0}: This creature loses flying. (This effect lasts indefinitely.)
{3}{U}{U}: This creature phases out. (While it's phased out, it's treated as though it doesn't exist. It phases in before you untap during your next untap step.)