First strike

When Dire Fleet Daredevil enters the battlefield, exile target instant or sorcery card from an opponent's graveyard. You may cast it this turn, and mana of any type can be spent to cast that spell. If that spell would be put into a graveyard, exile it instead.

Destroy all creatures with power 3 or greater.

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Aftermath (Cast this spell only from your graveyard. Then exile it.)

Return all creature cards with power 2 or less from your graveyard to your hand.

When Fairgrounds Warden enters the battlefield, exile target creature an opponent controls until Fairgrounds Warden leaves the battlefield.

When Form of the Dinosaur enters the battlefield, your life total becomes 15.

At the beginning of your upkeep, Form of the Dinosaur deals 15 damage to target creature an opponent controls and that creature deals damage equal to its power to you.

Destroy target artifact or enchantment with mana value 4 or less.

+1: Until your next turn, prevent all damage target permanent would deal.

0: Until end of turn, Gideon of the Trials becomes a 4/4 Human Soldier creature with indestructible that's still a planeswalker. Prevent all damage that would be dealt to him this turn.

0: You get an emblem with "As long as you control a Gideon planeswalker, you can't lose the game and your opponents can't win the game."

+1: Until your next turn, prevent all damage target permanent would deal.

0: Until end of turn, Gideon of the Trials becomes a 4/4 Human Soldier creature with indestructible that's still a planeswalker. Prevent all damage that would be dealt to him this turn.

0: You get an emblem with "As long as you control a Gideon planeswalker, you can't lose the game and your opponents can't win the game."

Indestructible, haste

Hazoret the Fervent can't attack or block unless you have one or fewer cards in hand.

{2}{R}, Discard a card: Hazoret deals 2 damage to each opponent.

This spell costs {3} less to cast if there are ten or more nonland permanents on the battlefield.

Destroy all nonland permanents.

When Path of Mettle enters the battlefield, it deals 1 damage to each creature that doesn't have first strike, double strike, vigilance, or haste.

Whenever you attack with at least two creatures that have first strike, double strike, vigilance, and/or haste, transform Path of Mettle.

(Transforms from Path of Mettle.)

{T}: Add one mana of any color.

{1}{R}, {T}: Metzali, Tower of Triumph deals 2 damage to each opponent.

{2}{W}, {T}: Choose a creature at random that attacked this turn. Destroy that creature.

When Path of Mettle enters the battlefield, it deals 1 damage to each creature that doesn't have first strike, double strike, vigilance, or haste.

Whenever you attack with at least two creatures that have first strike, double strike, vigilance, and/or haste, transform Path of Mettle.

(Transforms from Path of Mettle.)

{T}: Add one mana of any color.

{1}{R}, {T}: Metzali, Tower of Triumph deals 2 damage to each opponent.

{2}{W}, {T}: Choose a creature at random that attacked this turn. Destroy that creature.

Each player chooses any number of creatures they control with total power 4 or less, then sacrifices all other creatures they control.

Creatures entering the battlefield don't cause abilities to trigger.

Enrage -- Whenever Trapjaw Tyrant is dealt damage, exile target creature an opponent controls until Trapjaw Tyrant leaves the battlefield.

At the beginning of your upkeep, exile the top card of your library. If it's a nonland card, you may cast that card this turn.

Whenever you cast your third spell in a turn, you may transform Vance's Blasting Cannons.

(Transforms from Vance's Blasting Cannons.)

{T}: Add {R}.

{2}{R}, {T}: Spitfire Bastion deals 3 damage to any target.