msem-instigator

(Add a quest counter as this enters. Sacrifice after 3.)
Whenever two or more creatures you control deal combat damage to a player, add a quest counter.
1, 2 — Create a 2/1 black and red Cat Pirate creature token with menace.
3 — Create a colorless artifact token named Motherlode with “{T}: Add two mana of any one color” and
“{3}, {T}, Discard your hand: Draw two cards.”

Whenever one or more +1/+1 counters are put on a creature you control, you may search your library for a creature card, reveal it, put it into your hand, then shuffle.

Landfall — Whenever a land you control enters, create an Idol token. (It's an artifact with “{1}, Sacrifice this artifact: Put a +1/+1 counter on target creature. Activate only as a sorcery.”)

Choose one —
• Counter target creature or planeswalker spell.
• Return target creature or planeswalker to its owner's hand.

Equipped creature has “{T}: This creature deals damage equal to its power to any target.”
Equip {4}

Enchant creature
When Warrior's Discipline enters, put a +1/+1 counter on enchanted creature.
Whenever enchanted creature deals combat damage to a player, double the number of +1/+1 counters on it.

Flash
Flying
Whenever you cast another spell with flash or an instant, put a stun counter on up to one target creature if it's tapped. Otherwise, tap it.

Flash
When Fallacy's Sanctifier enters, exile up to three target cards from graveyards.
Recite {2} (You may cast this creature from your graveyard for its recite cost. If you do, exile it when it enters or if it would leave the battlefield.)

As an additional cost to cast this spell, sacrifice a permanent.
Exile the top two cards of your library. Until the end of your next turn, you may play those cards.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
When Hinasa Mystic enters, draw a card.

Flying, ward {3}
Inspired — Whenever Wang Xi becomes untapped, choose a nonbasic card name, then reveal the top five cards of your library. Put all cards with the chosen name from among them into your hand and the rest on the bottom of your library in any order.

When Seishin Rageshaper enters, create a 2/2 colorless Spirit creature token.
Colorless creatures you control have haste.

You may have Imaginative Dreamer enter as a copy of any creature on the battlefield. When it does, it stops being a copy.

When Old Salt enters, forebode. (Create a tapped colorless Omen artifact token with “{T}, Discard a card, Sacrifice this artifact: Draw a card.”)

Concord — This spell costs {4} less to cast if there are four or more card types among permanents you control.
Vigilance, trample, lifelink, haste

Destroy target nonland permanent.
If you've sacrificed a permanent this turn, draw a card.

Choose any target. Change the text of target instant or sorcery spell to “This spell deals 3 damage to the chosen target. Draw a card.”

This spell costs {1} less to cast for each counter on permanents you control.
Trample
{G}{G}, Remove ten counters from among permanents you control, Exile Grasp of the Stageless from your graveyard: Create a token that's a copy of Grasp of the Stageless. Activate only as a sorcery.

{4}, {T}: Look at the top card of your library. If it's a land card, you may put it onto the battlefield tapped. If you don't put the card onto the battlefield, put it into your hand.

Flash
Flying

Enchant creature
Enchanted creature gets +2/+2 and has “Whenever this creature attacks, tap target creature defending player controls.”

Whenever Gifted Swordsman attacks, upgrade it. (Give it one of the listed counters it doesn't already have.)
• +1/+1
• First strike

At the beginning of your upkeep, you may sacrifice a Goblin. If you do, Alenian Boom Squad deals 2 damage to any target.

Lifelink

When Lumen Cell enters, create a 1/1 white Human creature token, then put a +1/+1 counter on a creature you control.
{1}{W}: Search your library for a card named Lumen Cell, reveal it, put it into your hand, then shuffle.
{6}{W}{W}{W}: You win the game. Activate only if you control four or more permanents named Lumen Cell.