msem-instigator

Sunwing has flying as long as it's your turn.

Target creature gets +2/+0 until end of turn and gains “When this creature dies, return it to the battlefield tapped under its owner's control.”

When Suraj Militant enters the battlefield, target creature gets +1/+1 until end of turn.

Until end of turn, target creature gets +1/+1 and gains lifelink.

Regenerate target creature. (The next time this would be destroyed this turn, it isn't. Instead tap it.)

Flying
At the beginning of your upkeep, you may pay {1}. If you do, put a +1/+1 counter on Swarm of the Dispossessed.
Sacrifice Swarm of the Dispossessed: Counter target spell with mana value X, where X is the number of +1/+1 counters on Swarm of the Dispossessed.

Target player reveals their hand. Exile a nonland card from it and put a secret counter on it. As long as that card remains exiled, that player may pay {2} any time they could cast a sorcery to put it into their hand.
{X}{B}{B}, Exile Swipe Secrets from your graveyard: Until end of turn, you may cast target card you exiled with a secret counter on it and mana value X without paying its mana cost.

Sword deals 2 damage to any target.
Fuse (You may cast one or both halves of this card from your hand.)

Sycophantic Aristocrat gets +2/+1 as long as you control another Noble.

When Sylvan Explorer enters the battlefield, reveal the top card of your library. If it's a land card, put it onto the battlefield tapped.

Whenever you cast a blue spell, each opponent mills a card.

Syndicate Sycophant can't block.
When a creature scavenges Syndicate Sycophant, you may search your library for a card named Syndicate Sycophant, reveal it, put it into your hand, then shuffle.
Scavenge {2}{B} ({2}{B}, Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.)

At the beginning of each player's upkeep, put a darkness counter on target nonland permanent they control. That permanent is black for as long as it has a darkness counter on it. Then if there are five or more nonland permanents on the battlefield and they are all black, you may exile Tahiel, Elder Kalku and gain control of target creature or planeswalker.

Enchant creature
Enchanted creature gets +1/+0 and has trample and reach.

Draw three cards.
Skip your next turn. If it's your turn, end the turn.

Target creature gets +1/+2 and gains flying until end of turn.
Agonize (You may cast this card from your graveyard by putting a -1/-1 counter on a creature you control in addition to paying its other costs. Then exile this card.)

Whenever you scry, Taker of Tithes gets +1/+0 until end of turn and can't be blocked this turn.

Tap target creature.
Showcase {2}{W} (Then if you cast this for its showcase cost, create a 1/1 red Bard creature token that can't block and exile this. Whenever it attacks, you may cast a free copy of this.)

{U}, Exile a card from your hand or graveyard that doesn't share a type with a card exiled by Tea of Augury: Draw a card.

Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)
Whenever Tegan, the Sparrowhawk attacks, you may pay {R/W}. When you do, Tegan deals 1 damage to target creature if it's tapped. Otherwise, tap it.

Arm target creature you control. That creature gets 0/+2 and gains flying until end of turn. (To arm a creature, create a colorless Equipment artifact token with “Equipped creature gets +1/+0” and equip {2}, then attach it to that creature.)

Trample
Death knell — Put a +1/+1 counter on Tempest Dodger. (As a creature you control dies, trigger one death knell of that creature or another permanent you control.)

Temple Recluse gets +1/+0 as long as you've cast a noncreature spell this turn.

When Terraformer's Globe enters the battlefield, draw a card.
{T}: Target land you control becomes the basic land type of your choice until end of turn.

Trial 3 (As you cast this spell, an opponent of your choice may pay 3 life. If they don't, they fail the trial.)
Discard a card, then draw a card. If the trial was failed, instead discard two cards. If you do, draw two cards.