Spooky20

Haste When Fervent Cathar enters the battlefield, target creature can't block this turn.

Attacking creatures get +2/+0 until end of turn.

When Enthralling Victor enters the battlefield, gain control of target creature an opponent controls with power 2 or less until end of turn. Untap ...

This spell costs {1} more to cast for each target beyond the first. Fireball deals X damage divided evenly, rounded down, among any number of targets.

{R}: Target creature you control gains haste until end of turn. (It can attack and {T} this turn.)

Cinder Storm deals 7 damage to any target.

Thresher Lizard gets +1/+2 as long as you have one or fewer cards in hand.

Trample Goblin Gaveleer gets +2/+0 for each Equipment attached to it.

Haste

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

Draw two cards, then discard a card at random. Flashback {2}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Defender {1}{R}, {T}: Vent Sentinel deals damage to target player or planeswalker equal to the number of creatures with defender you control.

{R}: Chartooth Cougar gets +1/+0 until end of turn. Mountaincycling {2} ({2}, Discard this card: Search your library for a Mountain card, reveal it...

Defender When Dragon Egg dies, create a 2/2 red Dragon creature token with flying and "{R}: This creature gets +1/+0 until end of turn."

Enchant creature Enchanted creature gets +2/+2 and can't block. When Undying Rage is put into a graveyard from the battlefield, return Undying Ra...

Chandra's Outrage deals 4 damage to target creature and 2 damage to that creature's controller.

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

Enchant creature Enchanted creature gets +2/+2 and can't block. When Undying Rage is put into a graveyard from the battlefield, return Undying Ra...

Destroy target artifact. If that artifact had counters on it, put that many +1/+1 counters or charge counters on an artifact you control.

Any player may have Browbeat deal 5 damage to them. If no one does, target player draws three cards.

Attacking creatures get +2/+0 until end of turn.

Carbonize deals 3 damage to any target. If it's a creature, it can't be regenerated this turn, and if it would die this turn, exile it instead.

As an additional cost to cast this spell, discard two cards. Draw three cards.