msem-instigator

Flying
Whenever another creature enters the battlefield under your control from a graveyard or you revive a creature token, Tomb Scavenger gets +2/+0 until end of turn.

Tomb of Great Drakes enters the battlefield tapped.
{T}: Add {U}.
{2/U}{2/U}: Tomb of Great Drakes becomes a 2/2 blue Elemental creature with flying until end of turn. It's still a land.

Flying
When Tormentor Harpy enters the battlefield, if there are three or more creature cards in your graveyard, target creature an opponent controls gets -3/-3 until end of turn.

Flying
Ward—{2}, Pay 2 life.
At the beginning of your end step, if a card was put into or left your graveyard this turn, put a +1/+1 counter on Tormentor of Graves.

Flash
When Total Surveillance enters the battlefield, draw a card.
Whenever you cast another spell with flash or an instant, create a 1/1 colorless Drone artifact creature token with flying.

Flying
At the beginning of each combat, target opponent may give themselves a poison counter. If they don't, Tower of Sorrows gets +3/+0 until end of turn.

Towering Inferno deals X damage to each creature without flying. If a creature you don't control dealt damage this way would die this turn, exile it instead.

Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)
{2}{W}{W}, Return an unblocked attacking creature you control to its owner's hand: Create a 4/4 white Angel creature token with flying that's tapped and attacking.

Flying (This creature can't be blocked except by creatures with flying or reach.)
When Trained Warhawk enters the battlefield, create a 1/1 white Soldier creature token.

Land creatures you control get +1/+1 and have vigilance.
Enchantment creatures you control get +1/+1 and have lifelink.
Artifact creatures you control get +1/+1 and have flying.

{4}{W}{W}: Create a 4/4 white Angel creature token with flying.
{2}{W}{W}: Populate. (Create a token that's a copy of a creature token you control.)

Prevent all combat damage creatures with flying would deal this turn. Creatures you control gain reach until end of turn.

Equipped creature gets +1/+0 for each artifact you control.
As long as you control three or more artifacts, equipped creature has flying and haste.
Equip {3}

Triumvirate Infiltrator has flying as long as you control another Elemental.

Flying
When Trove Keeper dies, create two Treasure tokens.

Flying
When Trove Tyrant enters the battlefield, exile the top five cards of your library.
Whenever Trove Tyrant deals combat damage to a player, you may cast an artifact card exiled with it without paying its mana cost.

Flying
Whenever you tap a Mountain for mana, add {R} and that land deals 1 damage to you.
Whenever you tap a non-Mountain land for mana, that land deals 1 damage to Tseng, Warden of the Peak.

Flying
Lands you control have “{T}: Add {R}{R}. This land deals 2 damage to you.”
{R}{R}{R}{R}{R}{R}: Shuffle your library, then exile the top three cards. You may cast one of them without paying its mana cost.

Haste
Whenever Tunnel Moles attacks, you may have it phase out. (Treat it and anything attached to it as though they don't exist until its controller's next turn.)
Whenever Tunnel Moles phases in, it gets +2/+2 until end of turn and can't be blocked by creatures with flying this turn.

Flash
Flying
When Turela, Defiant Angel enters the battlefield, exile all other creatures you control. Return them to the battlefield under their owner's control at the beginning of the next end step.

Flying, lifelink
Sacrifice a creature: Until end of turn, Turned Watcher gets +1/+0 and gains “Whenever Turned Watcher deals combat damage to a player, draw a card.”

Flying, haste
Whenever another creature dies, Twinfire Dragon gets +1/+0 until end of turn.

Enchant creature
When Twinklewings enters the battlefield, draw a card.
Enchanted creature has flying.

Flying, menace, haste
Twisted Archangel has indestructible as long as an opponent has four or more cards in hand.

Create two 1/1 blue Bird creature tokens with flying and “When this creature dies, draw a card.”