Choose one —
• Skysnipe deals 5 damage to target creature with flying.
• Put a +1/+1 counter and a reach counter on target creature. Untap it.

Whenever you cast an instant or sorcery spell, Skyward Magus gets +1/+1 and gains flying until end of turn.

Sleeper Insurgent doesn't untap during your untap step.
Whenever Sleeper Insurgent becomes the target of a spell or ability you control, untap it. This ability triggers only once each turn.

Once each turn, when Smart Shopper enters or you cast a creature spell, you may create a Berry token. If three or more types of mana were spent to cast it, create two of those tokens instead.

When Smiling Sludge enters, create a Berry token.
Whenever you sacrifice a nonland permanent, target opponent loses 1 life and you gain 1 life.

Equipped creature gets +1/+1.
As long as equipped creature was activated this turn, it gets an additional +2/+2 and can attack as though it were untapped.
Equip {2}

Equipped creature gets +1/+0 and has flying.
Equip {2}

Return target creature to its owner's hand. If you controlled it, create a token that's a copy of it. Otherwise, create a 0/0 colorless Robot artifact creature token with a +1/+1 counter on it.

Haste
Amity — Whenever you attack with Solid Smog and exactly one other creature, you may pay {R}. If you do, transform Solid Smog.

Exile target creature or Subroutine, then return that card to the battlefield under its owner's control.
Cache the top card of your library face down.

Whenever Spear of the Sun-Crowned attacks, if you control two or more enchanted creatures, it gains lifelink until end of turn.

Whenever another creature you control enters, you may pay {X}{X}. If you do, put X +1/+1 counters on that creature.
{T}: Add one mana of any color.

Enchant creature
Whenever enchanted creature becomes the target of a spell or ability, put a +1/+1 counter on it and that creature deals 1 damage to each opponent. This ability triggers no more than twice each turn.

Whenever Spikemane Lion dies, you may bless target creature.

When this enchantment enters, it deals X damage to each creature.
Whenever one or more creatures your opponents control die, you create a Treasure token. This ability triggers only once each turn.

Amity — Whenever you attack with Splashing Mudskipper and exactly one other creature, surveil 1. When Splashing Mudskipper deals combat damage to a player this combat, you may transform it.

Landfall — Whenever a land you control enters, put a +1/+1 counter on Spore Collector. It gains your choice of vigilance, first strike, or lifelink until end of turn.

Flying
Springsoarer enters with a +1/+1 counter on it if a creature you controlled dealt combat damage to a player this turn.
Wander {2}{U}

Flying
When Squallrunner Duo enters, create a 1/1 white Human creature token.
Nontoken creatures you control that have attacked this turn have wander {2}.

Level up {1}{W}
[level 2-3] This creature has first strike during your turn.
[level 4+] This creature has first strike during your turn.

Return target creature card with mana value 3 or less from your graveyard to the battlefield with an exalted counter on it.

Reach
Whenever Star-Studded Sagittaur deals combat damage to a player, you may bless target land.

Exile target creature, then return that card to the battlefield under its owner's control. When you do, pay for and choose any number.
+{W} — Distribute two +1/+1 counters among one or two creatures you control.
+{C} — Exile that creature again. Return that card to the battlefield under its owner's control at the beginning of the next end step.
+{B} — All creatures get -1/-1 until end of turn.

Flying
Whenever an opponent spends mana, if it wasn't spent to cast a spell from their hand, you draw a card. This ability triggers only once each turn.

Create a Berry token, then sacrifice any number of Berry tokens. Target creature you control gets +1/+1 until end of turn for each Berry sacrificed this way. Then it fights target creature you don't control.