Enchant creature
Enchanted creature gets +3/+1, has flying, and is a Demon in addition to its other types.
You may cast Demonic Embrace from your graveyard by paying 3 life and discarding a card in addition to paying its other costs.

Goad all creatures you don't control. (Until your next turn, those creatures attack each combat if able and attack a player other than you if able.)

Spectacle (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.)
Target player reveals their hand. You choose a nonland card from it. That player discards that card.

When Dukhara Scavenger enters the battlefield, you may put target artifact or creature card from your graveyard on top of your library.

Embraal Bruiser enters the battlefield tapped.
Embraal Bruiser has menace as long as you control an artifact.

Engulfing Eruption deals 5 damage to target creature.

When Fathom Fleet Boarder enters the battlefield, you lose 2 life unless you control another Pirate.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)
Fen Hauler can't be blocked by artifact creatures.

Exile target creature.

Populate X times. (To populate, create a token that's a copy of a creature token you control. Do this X times.)

When Garrison Cat dies, create a 1/1 white Human Soldier creature token.

When Guild Summit enters the battlefield, you may tap any number of untapped Gates you control. Draw a card for each Gate tapped this way.
Whenever a Gate enters the battlefield under your control, draw a card.

Flash
If an opponent would draw a card except the first one they draw in each of their draw steps, instead you create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Enchant artifact or creature
Enchanted permanent doesn't untap during its controller's untap step.

Flying
Whenever Kitesail Skirmisher attacks, another target creature attacking the same player or planeswalker gains flying until end of turn.
Encore (, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

First strike
Hexproof from black (This creature can't be the target of black spells or abilities your opponents control.)
Knight of Grace gets +1/+0 as long as any player controls a black permanent.

First strike
Hexproof from white (This creature can't be the target of white spells or abilities your opponents control.)
Knight of Malice gets +1/+0 as long as any player controls a white permanent.

When Legion Conquistador enters the battlefield, you may search your library for any number of cards named Legion Conquistador, reveal them, put them into your hand, then shuffle your library.

Exile target creature. At the beginning of the next end step, return that card to the battlefield under its owner's control with a +1/+1 counter on it.

For each opponent, gain control of up to one target creature that player controls until end of turn. Untap those creatures. They gain haste until end of turn.