Whenever one or more creatures attack, you may have target attacking creature gain double strike until end of turn.

Target player sacrifices an attacking creature. You create X 1/1 white Soldier creature tokens, where X is that creature’s toughness.

At the beginning of your upkeep, each player may put two +1/+1 counters on a creature they control. If a player does, creatures that player controls can’t attack you or planeswalkers you control until your next turn.

Flash

When Selfless Squire enters the battlefield, prevent all damage that would be dealt to you this turn.

Whenever damage that would be dealt to you is prevented, put that many +1/+1 counters on Selfless Squire.

Undaunted (This spell costs {1} less to cast for each opponent.)

Destroy all creatures.

Undaunted (This spell costs {1} less to cast for each opponent.)

Return all nonland permanents to their owners’ hands.

When Deepglow Skate enters the battlefield, double the number of each kind of counter on any number of target permanents.

Flying

Whenever a nontoken creature enters the battlefield under an opponent’s control, create a token that’s a copy of that creature except it’s an artifact in addition to its other types. Then exile all other tokens created with Faerie Artisans.

Gain control of target Equipment, then create a 0/0 black Phyrexian Germ creature token and attach that Equipment to it.

Reveal the top ten cards of your library. Starting with the next opponent in turn order, each opponent chooses a different nonland card from among them. Put the chosen cards into your hand and the rest on the bottom of your library in a random order.

Choose target player and another target player. The first player controls the second player during the second player’s next turn, and the second player controls the first player during the first player’s next turn.

Enchant player

Whenever enchanted player casts a spell, put a spite counter on Curse of Vengeance.

When enchanted player loses the game, you gain X life and draw X cards, where X is the number of spite counters on Curse of Vengeance.

Undaunted (This spell costs {1} less to cast for each opponent.)

Destroy two target creatures.

{2}{B}, {T}, Exile Magus of the Will: Until end of turn, you may play lands and cast spells from your graveyard. If a card would be put into your graveyard from anywhere this turn, exile that card instead.

Destroy target creature. You draw X cards and you lose X life, where X is the number of counters on that creature.

Haste

At the beginning of each player’s end step, if no creatures attacked this turn, put a fury counter on Charging Cinderhorn. Then Charging Cinderhorn deals damage equal to the number of fury counters on it to that player.

Undaunted (This spell costs {1} less to cast for each opponent.)

Exile two target creatures. For each of those creatures, its controller reveals cards from the top of their library until they reveal a creature card, puts that card onto the battlefield, then shuffles the rest into their library.

Enchant permanent

When Frenzied Fugue enters the battlefield or at the beginning of your upkeep, gain control of enchanted permanent until end of turn. Untap that permanent. It gains haste until end of turn.

First strike

At the beginning of each opponent’s end step, that player creates a 1/1 red Goblin creature token with “Creatures you control attack each combat if able.”

Flying

{5}{R}, Exile Runehorn Hellkite from your graveyard: Each player discards their hand, then draws seven cards.