msem-instigator

Choose one —
• Exile target permanent you control, then return that card to the battlefield under its owner's control.
• Return target permanent you control to its owner's hand. Draw a card.

When Militant Arms enters, create a 1/1 white Human creature token, then attach Militant Arms to it.
Equipped creature gets +2/+1.
Equip {3}

Flying
Whenever you attack, create two 1/1 white Human creature tokens that are tapped and attacking. Creatures you control get +1/+1 until end of turn.
Fleeting {2}{W}{W} (You may cast this spell for its fleeting cost. If you do, sacrifice it at the beginning of the next end step.)

When Lumen Cell enters, create two 1/1 white Human creature tokens and you gain 2 life.
{1}{W}: Search your library for a card named Lumen Cell, reveal it, put it into your hand, then shuffle. Activate only as a sorcery.
{6}{W}{W}{W}: You win the game. Activate only as a sorcery and only if you control four or more permanents named Lumen Cell.

Target creature gets +2/+2 until end of turn. Untap it.

When Long Journey enters, exile target creature or planeswalker an opponent controls until Long Journey leaves the battlefield.

Put a +1/+1 counter on each creature you control. Until end of turn, creatures you control gain vigilance and “When this creature dies, create a 1/1 white Human creature token.”

Enchant creature
Enchanted creature gets +2/+2 as long as it's a Human. Otherwise, it can't attack or block.

Whenever Heroic Exemplar attacks, if its power is greater than its base power, other creatures you control get +1/+1 until end of turn.

When Frontline Veteran enters, you may sacrifice another creature or artifact. If you do, draw a card.

Flash
Flying
Whenever another Spirit you control enters, put a +1/+1 counter on Flickers in the Night.

You may exert Extoller of Effort as it attacks. (An exerted creature won't untap during your next untap step.)
Whenever you exert a creature, create a 1/1 white Human creature token.

Vigilance
When Emirik Patrol enters, create two 1/1 white Human creature tokens.

When Emirik Invigilator enters, exile target creature an opponent controls until Emirik Invigilator leaves the battlefield.
Fleeting {W} (You may cast this spell for its fleeting cost. If you do, sacrifice it at the beginning of the next end step.)

Exile target nonland permanent.

When Conscious Taboo enters, look at target opponent's hand. You may exile a noncreature, nonland card from it. For as long as that card remains exiled, its owner may play it. A spell cast this way costs {2} more to cast.

Flying
At end of combat on your turn, untap all creatures you control with power greater than their base power.

When Confident Traveler dies, create a 1/1 white Human creature token. If Confident Traveler was sacrificed, create two of those tokens instead.

Flash
When Comforting Presence enters, return target spell with mana value 2 or less to its owner's hand.
Whenever an opponent casts their second spell each turn, draw a card.

When Belief in the World enters, you may tap two untapped creatures you control. If you do or you control two or more Spirits, search your library for a Spirit card, reveal it, put it into your hand, then shuffle.
Creatures you control get +1/+1.

If you control ten or more nonland permanents, you get an emblem with “At the beginning of your end step, return target permanent card from your graveyard to the battlefield.”
Destroy all nonland permanents.

When Restless Explorer enters, search your library for a land card, reveal it, put it into your hand, then shuffle.

({T}: Add {B} or {R}.)
As Vacated Bar enters, you may pay {1}. If you don't, Vacated Bar enters tapped.

({T}: Add {G} or {W}.)
As Sunlit Plaza enters, you may pay {1}. If you don't, Sunlit Plaza enters tapped.

{T}: Add {C}.
{2}, {T}: Add three mana of any one color.
{3}, {T}: Create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”