Eventide

{2}{R}, {T}, Put a -1/-1 counter on a creature you control: Hatchet Bully deals 2 damage to any target.

Chroma — When Outrage Shaman enters the battlefield, it deals damage to target creature equal to the number of red mana symbols in the mana costs o...

When Noggle Hedge-Mage enters the battlefield, if you control two or more Islands, you may tap two target permanents. When Noggle Hedge-Mage enters...

{T}: Cinder Pyromancer deals 1 damage to target player or planeswalker. Whenever you cast a red spell, you may untap Cinder Pyromancer.

Haste Chroma — When Heartlash Cinder enters the battlefield, it gets +X/+0 until end of turn, where X is the number of red mana symbols in the mana...

Flying Attacking creatures you control get +2/+0.

{U/R}: Stream Hopper gains flying until end of turn.

Whenever you cast a spell that's both blue and red, Riverfall Mimic has base power and toughness 3/3 until end of turn and can't be blocked this turn.

Gain control of target creature until end of turn. Untap that creature. It gets +X/+0 and gains haste until end of turn.

Target creature gains double strike until end of turn. (It deals both first-strike and regular combat damage.)

When Nucklavee enters the battlefield, you may return target red sorcery card from your graveyard to your hand. When Nucklavee enters the battlefie...

{1}{U/R}{U/R}: Copy target instant or sorcery spell that targets you. You may choose new targets for the copy.

Flying At the beginning of your upkeep, you may gain control of target permanent until end of turn. If you do, untap it and it gains haste until en...

Wither (This deals damage to creatures in the form of -1/-1 counters.) {2}{R}, {Q}: Hateflayer deals damage equal to its power to any target. ({Q} ...

Haste Thunderblust has trample as long as it has a -1/-1 counter on it. Persist (When this creature dies, if it had no -1/-1 counters on it, retu...

Flying

Wither (This deals damage to creatures in the form of -1/-1 counters.) {R/W}: Duergar Cave-Guard gets +1/+0 until end of turn.

Whenever Spitemare is dealt damage, it deals that much damage to any target.

Wither (This deals damage to creatures in the form of -1/-1 counters.) Whenever Stigma Lasher deals damage to a player, that player can't gain life...

Enchant creature As long as enchanted creature is red, it gets +1/+1 and has "{R/W}: This creature gets +1/+0 until end of turn." As long as ench...

Wither (This deals damage to creatures in the form of -1/-1 counters.) Whenever Stigma Lasher deals damage to a player, that player can't gain lif...

Other blue creatures you control get +1/+1. Other red creatures you control get +1/+1. {U/R}{U/R}{U/R}{U/R}: You may put a blue or red creature car...

Wither (This deals damage to creatures in the form of -1/-1 counters.) Puncture Blast deals 3 damage to any target.

Untap all creatures that attacked this turn. After this main phase, there is an additional combat phase followed by an additional main phase. Retra...