msem-instigator

Choose three. You may choose the same mode more than once.
• Return target creature with mana value 2 or less to its owner's hand.
• Scry 1, then draw a card, then discard a card.
• Target creature gets -2/-0 until end of turn and attacks this turn if able.

When Blighting Ooze enters, put a -1/-1 counter on each of up to X target creatures.
As long as Blighting Ooze is on the battlefield, it has all activated abilities of each creature with a -1/-1 counter on it.

{2}{U}, {T}: Look at the top card of your library. If it's a Scout card or a card with an Adventure, you may reveal it and draw a card.

Choose two —
• Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.
• Each opponent loses life equal to the number of cards you've drawn this turn.
• Rahstahde's Command deals damage to each creature equal to the number of cards you've drawn this turn.
• Create a 1/1 white Soldier creature token for each card you've drawn this turn.

[+1]: Exile up to one other target permanent until the beginning of its owner's next end step.
[–1]: Return another target planeswalker to its owner's hand.
[–6]: You get an emblem with “Whenever a permanent leaves the battlefield, each opponent discards a card.”

Improve {G} ({G}: Put a +1/+1 counter on this creature. This costs {1} more to activate for each +1/+1 counter on it. Improve only as a sorcery.)
When Pack Huntress enters, create a 2/2 green Wolf creature token.

Lifelink
At the beginning of each player's end step, that player discards each card in their hand, then draws that many cards. When no cards are discarded this way, Dayang, Aspiring Muse deals 2 damage to each opponent.

Flash
Flying
Whenever you cast another spell with flash or an instant, conjure a card named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)

When Dreamsight Well enters, shuffle any number of cards you own from outside the game into your library.
Whenever you cast a creature spell, if you have more cards in your library than each opponent, draw a card.

{T}: Add {G}.
{T}: Sacrifice Visionary Developer: Create a token that's a copy of target token you control. Activate only as a sorcery.

Bleed {R} (You may cast this spell for its bleed cost if an opponent has lost life this turn.)
Add {R}{R}{R}.

Vigilance
Whenever Liege of Asham attacks or blocks, other attacking or blocking creatures you control get +1/+1 until end of turn.

Exile up to one target activated ability, triggered ability, or nonland permanent.
Coalesce {5}{G}{W}{U} (You may cast this from your graveyard for {5}{G}{W}{U}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)
End of All Things enters tapped.

First strike, haste
Whenever Soulflare Nymph deals damage to a creature, exile that creature.

When Steelcharm Obliterator enters, choose one —
• Put two +1/+1 counters on Steelcharm Obliterator.
• Target creature you control fights another target creature.

Desert Wurms can't be blocked by creatures with flying.
When Desert Wurms enters, create two 6/6 red Wurm creature tokens with “This creature can't be blocked by creatures with flying.”
When Desert Wurms is put into a graveyard from anywhere, shuffle it into its owner's library.

First strike
As long as it's your turn, other creatures you control get +1/+0.

(Choose only one work as a sorcery to add its ability.)
When Kanghyae Forum enters, you may return another permanent you control to its owner's hand. If you don't, draw a card.
{2}{G}: A Common Good
If an effect would create one or more tokens under your control, it creates that many of those tokens plus one instead.
{2}{W}: Rebuilding Trust
If an effect would put one or more counters on a permanent you control, it puts that many of those counters plus one on that permanent instead.

Enchant creature
Enchanted creature gets +2/+2 and has vigilance.
Sacrifice Spirit Guidance: Exile enchanted creature, then return it to the battlefield under its owner's control.

Whenever a Soldier you control enters, you may untap Sandbluff Irregular.

[+2]: Each player can cast only one more spell until your next turn.
[–3]: Exile all other permanents, then return them to the battlefield tapped under their owner's control. Creatures can't attack you or planeswalkers you control until your next turn.
[–8]: Return all permanent cards from your graveyard to the battlefield tapped.

Creatures you control have protection from legendary. (Those creatures can't be blocked, targeted, dealt damage, or enchanted by anything legendary.)

Whenever another creature dies, you gain 1 life.
At the beginning of each end step, if you gained 3 or more life this turn, transform Dowager of Traublassen.

Once each turn, when a creature you control enters, you may draw a card if its power is greater than each other creature's power.

Investigate ten times. (Create ten colorless Clue artifact tokens with “{2}, Sacrifice this artifact: Draw a card.”)