Flying
When Deathbringer Regent enters the battlefield, if you cast it from your hand and there are five or more other creatures on the battlefield, destroy all other creatures.

[+1]: Look at the top card of your library. If it's a creature card, you may reveal it and put it into your hand.
[−2]: Target creature you control fights another target creature.
[−7]: You get an emblem with "Creatures you control have double strike, trample, hexproof, and haste."

: Dragon Whisperer gains flying until end of turn.
: Dragon Whisperer gets +1/+0 until end of turn.
Formidable — : Create a 4/4 red Dragon creature token with flying. Activate this ability only if creatures you control have total power 8 or greater.

Whenever you cast your first spell during each opponent's turn, Dreamstalker Manticore deals 1 damage to any target.

Each player shuffles their hand and graveyard into their library, then draws seven cards. Exile Emergency Powers.
Addendum — If you cast this spell during your main phase, you may put a permanent card with converted mana cost 7 or less from your hand onto the battlefield.

Surge (You may cast this spell for its surge cost if you or a teammate has cast another spell this turn.)
Fall of the Titans deals X damage to each of up to two targets.

Fateful End deals 3 damage to any target. Scry 1.

Fateful Showdown deals damage to any target equal to the number of cards in your hand. Discard all the cards in your hand, then draw that many cards.

Firebolt deals 2 damage to any target.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Counter target instant or sorcery spell unless its controller pays .
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

When Gibbering Fiend enters the battlefield, it deals 1 damage to each opponent.
Delirium — At the beginning of each opponent's upkeep, if there are four or more card types among cards in your graveyard, Gibbering Fiend deals 1 damage to that player.

Choose a creature or planeswalker you control. All damage that would be dealt this turn to you and permanents you control is dealt to the chosen permanent instead (if it's still on the battlefield).

Search your library for up to four cards with different names and reveal them. Target opponent chooses two of those cards. Put the chosen cards into your graveyard and the rest into your hand. Then shuffle your library.

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)
Cycling (, Discard this card: Draw a card.)

Whenever a nontoken creature enters the battlefield under your control, if it doesn't have the same name as another creature you control or a creature card in your graveyard, draw a card.

, : Return target artifact or enchantment card from your graveyard to your hand.

Choose target creature. You get (three energy counters), then you may pay any amount of . Harnessed Lightning deals that much damage to that creature.

Flash (You may cast this spell any time you could cast an instant.)
Whenever a creature deals combat damage to you, if Hixus, Prison Warden entered the battlefield this turn, exile that creature until Hixus leaves the battlefield. (That creature returns under its owner's control.)

Until end of turn, target creature loses all abilities and has base power and toughness 0/1.

Impeccable Timing deals 3 damage to target attacking or blocking creature.