msem-instigator

(Add a quest counter as this enters. Sacrifice after 3.)
Whenever one or more creatures you control survive damage, add a quest counter.
1 — You may put a creature card with mana value 2 or less from your hand onto the battlefield.
2 — Put two +1/+1 counters on target creature you control.
3 — Choose target creature you control. You draw cards equal to half that creature's power, rounded down.

Target creature you control gets +1/+0 until end of turn. It fights up to one target creature you don't control. (Each deals damage equal to its power to the other.)

[+1]: Untap up to two target creatures and/or lands.
[–2]: Choose a color. Draw cards equal to the number of creatures you control of the chosen color.
[–7]: Reveal the top ten cards of your library. Put all creature and land cards revealed this way onto the battlefield and the rest into your hand.

Landfall — Whenever a land you control enters, add {G}.
{3}{G}: Target creature you control gets +2/+2 until end of turn.

Enchant creature you control
Whenever enchanted creature attacks, mill three cards.
When enchanted creature leaves the battlefield, create an X/X green Spirit creature token, where X is equal to the number of card types among cards in your graveyard.

When Memories Rewound enters, you may put target card from your graveyard on top of your library.
{1}: Put target card from your graveyard on the bottom of your library. Activate only once during each of your turns.

Draw X cards and you gain X life, where X is the number of card types among permanents you control.

Choose one—
• Destroy target artifact.
• Target creature gets +4/+4 until end of turn.

Enchant creature
Enchanted creature gets +3/+3 and has trample.

Reveal the bottom two cards of your library. You may put one of those cards into your hand. If you do, target creature gets +X/+X until end of turn, where X is that card's mana value.

Search your library for a basic Forest or Plains card, put that card onto the battlefield tapped, then shuffle.
{3}{W}, Exile Migration Range from your graveyard: Create two 1/1 green and white Elk Spirit creature tokens. Activate only as a sorcery.

Flash
Enchant creature you control
Enchanted creature gets +2/+2.
Whenever enchanted creature attacks, if it's a Citizen or Peasant, create a 1/1 white Peasant creature token.

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)
Scry 1. (To scry 1, look at the top card of your library. You may put that card on the bottom of your library.)

Starting with you, each player may put a permanent card from their hand onto the battlefield. Then each player may choose a noncreature, nonland permanent. Destroy those permanents.

You may have Mirror Mirage enter as a copy of any land on the battlefield, except it's an enchantment in addition to its other types.

Enchant creature
Enchanted creature has hexproof.
{U}: Return Mistcharm to its owner's hand.

You may play an additional land on each of your turns.
{4}{U}{U}: Transform Misthollow Rites. Activate only as a sorcery.

Conjure into your hand a duplicate of target nontoken permanent you control or permanent card in your graveyard.
Exile Molecular Mimicry.

Align X (Choose modes with total ★ less than or equal to X. You may choose modes multiple times.)
• ★ — Whenever a creature attacks this turn, it gets +1/+1 until end of turn.
• ★★ — Create a 3/3 green Wurm creature token. It gains haste until end of turn.
• ★★★★★ — For each creature you control, create a token that's a copy of it. They gain haste.

Target creature you control gains indestructible until end of turn if it has a +1/+1 counter on it. Then it fights target creature you don't control.

Choose one —
• Destroy target artifact or enchantment.
• Search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle.

Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Compose (Then if you cast this from your hand, exile it and create a Saga token with “r3—You may cast a copy of this card from exile without paying its mana cost.”)

Flash
Enchant creature
When Moved by Instinct enters, put a +1/+1 counter on enchanted creature.
Enchanted creature has haste and trample.

Exile a nonland card from your graveyard: For each colored mana symbol in that card's mana cost, add one mana of that color. Activate only once each turn. (For example, if the card's mana cost is {3}{G}{G}{W}, you add {G}{G}{W}.)

Whenever a nontoken creature you control enters, if it shares no creature types with other creatures you control, draw a card.