Kicker (You may pay an additional as you cast this spell.)
Flying
When Kor Aeronaut enters the battlefield, if it was kicked, target creature gains flying until end of turn.

Create two 1/1 red Goblin creature tokens.

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

: Create X 1/1 red Goblin creature tokens, where X is the number of Goblins you control.

Strive — This spell costs more to cast for each target beyond the first.
Until end of turn, any number of target creatures each gain "Whenever this creature attacks, create a 1/1 white Soldier creature token that's tapped and attacking."

Target opponent reveals their hand. You choose a nonlegendary, nonland card from it. That player discards that card.

Deathtouch
Whenever Liliana's Reaver deals combat damage to a player, that player discards a card and you create a tapped 2/2 black Zombie creature token.

Trample

Defender
: Put a hatchling counter on Ludevic's Test Subject. Then if there are five or more hatchling counters on it, remove all of them and transform it.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Mage-Ring Bully attacks each combat if able.

, Sacrifice a nonland permanent: Magmaw deals 1 damage to any target.

Flying
When Malfegor enters the battlefield, discard your hand. Each opponent sacrifices a creature for each card discarded this way.

Raid — When Mardu Heart-Piercer enters the battlefield, if you attacked this turn, Mardu Heart-Piercer deals 2 damage to any target.

Protection from red
Elemental creatures you control get +1/+1.
When Master of Waves enters the battlefield, create a number of 1/0 blue Elemental creature tokens equal to your devotion to blue. (Each in the mana costs of permanents you control counts toward your devotion to blue.)

Target opponent reveals their hand. You choose a nonland card from that player's graveyard or hand and exile it.
Cycling (, Discard this card: Draw a card.)

Militant Inquisitor gets +1/+0 for each Equipment you control.

Whenever an opponent draws a card, you may pay . If you do, draw a card.

Mindless Null can't block unless you control a Vampire.

Double strike, protection from black and from green