msem-instigator

Flying
Tap two untapped creatures you control: Skymount Commander gains double strike until end of turn.

Flying
When Skymount Reinforcements enters the battlefield, put a +1/+1 counter on another target creature.

Enchant creature
Enchanted creature gets +1/+1 and has flying.
When Skypath Pilgrimage enters the battlefield, journey twice. (Exile the top two cards of your library face up. Whenever a creature you control deals combat damage to an opponent, put a journeyed card you own into your hand.)

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever Skysovereign Griffin attacks, it gets +1/+0 until end of turn for each other attacking creature with flying you control.

Flying
Whenever an embattled creature you control deals combat damage to a player, draw a card. (A creature is embattled if it has a counter on it or a permanent you control attached to it.)

At the beginning of combat on your turn, target creature you control with flying gets +1/+1 until end of turn.

Rhapsody {3}{W}{W} (Pay {3}{W}{W} to cast this as a 4/4, or as a sorcery to make it become a 4/4.)
Players can't search libraries unless they pay {X}, where X is Skytouch Distorter's power.

Resolute — At the beginning of combat on your turn, if Skyward Gaveller's power is greater than its base power, it gains flying until end of turn.

Flying
As long as you control exactly one other creature, that creature gets +1/+1 and has flying.

Lifelink
When Slaffield Work-Hauler enters the battlefield, create a 0/2 white Ox creature token for each enchantment you control.
Whenever an enchantment enters the battlefield under your control, Oxen you control get +1/+1 until end of turn.

Whenever Slaffield Workgate or another enchantment enters the battlefield under your control, create a 0/2 white Ox creature token.
{3}{W}: Return another target enchantment you control to its owner's hand.

Tribute 4 (As this creature enters the battlefield, an opponent of your choice may put four +1/+1 counters on it.)
When Slaughter enters the battlefield, if tribute was paid, destroy all other creatures. Otherwise, destroy all creatures you don't control.

Flying, vigilance

Until end of turn, target player can't cast noncreature spells, and that player can't activate abilities that aren't mana abilities.
Draw a card.

Vanguard — Whenever a creature you control attacks alone, it gets +1/+1 until end of turn. Untap that creature.

(Transform this if it's not attached to a creature. Pay {2}{W} as a sorcery to unattach it.)
Enchant creature you control
Slopestrider's Chariot's rider gets +1/+1 and has double strike.

Defender
Whenever Slumbering Bear is dealt damage, put a +1/+1 counter on it.
Remove a +1/+1 counter from Slumbering Bear: It can attack as though it didn't have defender this turn.

Destroy target enchantment. If it's a Curse, you gain 3 life.

Destroy target creature with power 4 or greater.

Exile target permanent. Smite the Unruly deals damage equal to that permanent's mana value to its controller and you gain that much life.

{2}, Return a creature you control to its owner's hand: Smooth Musician gets +1/+1 and gains lifelink until end of turn.

Flying

Lifelink
When you attain Sojourner of the Beyond, create two 1/1 white Spirit creature tokens with flying. They gain haste until end of turn.

Flying

When Solar Pact enters the battlefield, return up to two cards with different mana values from your graveyard to your hand.
Each player can't draw more than one card each turn.