msem-instigator

Exile target nonland permanent.

{G}{G}: Create a 2/2 green Wolf creature token.
{1}{G}{G}: Create Shimaru, the White Wolf, a legendary 3/3 green Wolf creature token with hexproof.
{2}{G}{G}: Creatures you control get +2/+2 and gain trample until end of turn.

Chronicle (As this enters and after your draw step, add a lore counter. Stop after III.)
[Lore I-II] Scry 1.
[Lore III] Target creature you control can't be blocked until end of turn.

Enchant creature
Enchanted creature gets -2/-2.
Mirage—{B}, Discard a card. (You may cast this spell as though it had flash for its mirage cost. If you do, sacrifice it at the beginning of the next cleanup step.)

When Oathkeeper's Verdict enters, tap all creatures your opponents control.
Equipped creature gets +3/+3.
Equip {3}

Look at the top four cards of your library. Put one of them into your hand, another on top of your library, and the rest into your graveyard.
Agonize (You may cast this card from your graveyard by putting a -1/-1 counter on a creature you control in addition to paying its other costs. Then exile this card.)

{T}: Surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)
At the beginning of combat on your turn, you may exile a creature card from your graveyard. When you do, target creature with the same power as the exiled card can't be blocked this turn.

Gestalt (When this or another creature enters under your control, you may merge it with the one in play, keeping counters and attachments. They become the permanent on top plus all abilities from under it.)
Lifelink

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Creatures you control get +1/+1 and gain flying and lifelink until end of turn.

Choose one —
• Destroy target artifact or enchantment.
• Return target creature to its owner's hand.
• Draw a card.

When Unmasker of Fate's Design enters, look at target player's hand. Choose a nonland card from it and exile that card with a puzzle counter on it. As long as that card has a puzzle counter on it, that player may pay {2} and 1 life at any time. If they do, return the exiled card to their hand.

You may reveal a creature card from your hand. Return each creature with power less than the greatest power among creatures you control and creature cards revealed this way to their owners' hands .

When Diviner of the Mists enters, target opponent chooses two cards in their hand and reveals one of them. Exile one of those cards. You may play that card for as long as it remains exiled, and spend mana as though it were mana of any color to cast it.

Creatures your opponents control get -1/-0 until end of turn for each different creature type among creatures you control.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Whenever you cast a noncreature spell, you may switch Master of Tranquility's power and toughness until end of turn.

When Festival Rioters enters, create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”
{1}{R}: Festival Rioters gets +2/+0 until end of turn.

Target creature gets +3/+3 until end of turn. If this spell was foretold, it gets +5/+5 until end of turn instead.
Foretell {1}{G} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Flying
Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)

Draw two cards. If three or more colors of mana were spent to cast Planeswalker's Insight, draw three cards instead.

Destroy target artifact.
Inscribe {2}{R} ({2}{R}: Exile this card from your hand inscribed on a creature you control. Whenever that creature attacks, its controller may cast a copy of the inscribed card without paying its mana cost. Inscribe only as a sorcery.)

When Memory Figment is put into your graveyard from your hand or library, you may exile it. If you do, for as long as it remains exiled, you may cast it. It costs {2} less to cast this way.

Whenever Arcane Metalcrafter or another Wizard you control attacks, create a 1/1 colorless Construct artifact creature token that's tapped and attacking.
Whenever a Construct you control dies, Arcane Metalcrafter deals 1 damage to each opponent.

Menace
{1}{B}{R}: Creatures you control get +1/+0 until end of turn.