msem-instigator

{2}, {T}, Exile a card from your graveyard: Draw a card.

Choose two —
• You gain 3 life.
• Tap target creature.
• Put a +1/+1 counter on target creature.

The owner of target creature or planeswalker shuffles it into their library, then they may create two 1/1 blue Bird creature tokens with flying. If they don't, they reveal cards from the top of their library until they reveal a nonland permanent card, then they put that card onto the battlefield and shuffle the rest into their library.

Flying, prowess
When Spellwarden Sphinx enters, tap up to three nonland permanents. Those permanents don't untap during their controllers' next untap step.

Target creature gets +2/+0 and gains trample and haste until end of turn.
Cycling {2} ({2}, Discard this card: Draw a card.)

Escalate {B} (Pay this cost for each mode chosen beyond the first.)
Choose one or both —
• Put target permanent on top of its owner's library.
• For each library, look at the top three cards of that library, put any number of them into their owner's graveyard, then the rest back on top in any order.

Flying
Menagerie — When Bleakrealm Mini-Menace enters, if there are five or more creature types among creatures you control, it deals 2 damage to target opponent and 2 damage to up to one target creature or planeswalker that player controls.

As Evil One's Mind Tricks enters choose Lafterii or Evil One.
• Lafterii — Wizards you control have “{3}{U}, {T}: Draw a card.”
• Evil One — Whenever a Zombie you control enters, target player mills two cards.

At the beginning of each combat, harmonize twice. (To harmonize, trigger up to one harmony of a permanent you control.)
Harmony — Target creature gets +1/+1 and your choice of flying, haste, or vigilance until end of turn.

When you cast this spell, copy it for each color of mana spent to cast it beyond the first.
Flying

Return target creature card with mana value 5 or less from your graveyard to the battlefield.
Metamorph {B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up and cast it at any time for its metamorph cost.)

When Callow Survivors enters, you may return target artifact or enchantment card with mana value 3 or less from your graveyard to the battlefield.

Enchant opponent
Creatures attacking enchanted player get +2/+0.
{R}, Discard Kernel Flare: Draw a card.

Whenever Bloodthirsty Insurgent attacks, it gets +2/+0 until end of turn.

Lifelink
At the beginning of your end step, if you gained life this turn, put a +1/+1 counter on Backstage Manager.

Whenever Unbudging Badger attacks, if its power is 4 or greater, it gains trample until end of turn.

Prowess
When Scarlands Singularity enters, each player conjures a card named Data-Point into their hand. (It's a sorcery that costs {2} with “Draw a card.”)

This spell costs {3} more to cast if it targets a card in an opponent's graveyard.
Choose target creature or planeswalker card in a graveyard that was put there from the battlefield this turn. Put that card onto the battlefield under your control.

Equipped creature gets +2/+0.
Equipped creature has first strike as long as it's attacking.
Equip {3}

Pay any amount of life. Look at twice that many cards from the top of your library and put one into your hand. Exile the rest.

Scry 1, then draw a card.
Acquiesce (If you cast this spell from your hand, exile it as it resolves. When one or more creatures you control deal combat damage to an opponent, you may cast this card from exile without paying its mana cost.)

Flying
Whenever Frenzied Sylph attacks or blocks, you may pay {R}. If you do, it gets +3/+0 until end of turn. Exile it at the beginning of the next end step.

Choose one —
• Destroy all creatures.
• Create a 4/4 white Angel creature token with flying and vigilance.

[+1]: Exile the top two cards of your library. You may play up to one card exiled this way this turn.
[–2]: Menna Al-Mejjat deals 3 damage to target creature. If that creature would die this turn, exile it instead.
[–6]: Draw cards equal to the number of cards in exile. Menna Al-Mejjat deals that much damage to any target.

Put a +1/+1 counter on each creature you control. (Then exile this card. You may cast the creature later from exile.)