msem-instigator

At the beginning of combat on your turn, target creature you control has base power and toughness 5/5 until end of turn.

Exile target nonbasic permanent. Search any number of graveyards, hands and libraries for any number of cards with the same name as that permanent and exile them. Then each player shuffles their libraries searched this way.

This spell costs {1} less to cast for each permanent sacrificed this turn.
Destroy target noncreature permanent.

When Rixia, Rift Shunted enters, target creature can't be blocked this turn.
Whenever a creature you control deals combat damage to an opponent, you may aetherize it. (To aetherize, create a token that's a copy of it, then exile that token.)

Target creature you control gets +3/+1 and gains trample until end of turn.
Showcase {3}{R}{R} (Then if you cast this for its showcase cost, create a 1/1 red Bard creature token that can't block and exile this. Whenever it attacks, you may cast a free copy of this.)

Destroy target creature with total power and toughness 8 or less.

Striptide deals 1 damage to target creature. Unattach all artifacts from it. It becomes red until end of turn.
Draw a card.

Whenever you cast a spell, you gain 1 life for each of its colors other than white.

Enchant creature
Enchanted creature gets +4/+4 and has trample.
When enchanted creature dies, create a 4/4 green Beast creature token with trample.

Whenever an artifact enters or leaves the battlefield under your control, you gain 1 life.

Vigilance
Cadence (Whenever you cast a spell, if its mana value is greater than this creature's power, put a +1/+1 counter on this creature.)

Destroy target creature if it was dealt damage this turn.

Equipped creature gets +1/+0 and has poisonous 1. (Whenever it deals combat damage to a player, that player gets a poison counter.)
Equip {1}

Torch Reveler gets +2/+0 as long as you control an artifact.

If a creature would die this turn, exile it instead.
All-Consuming Fire deals 4 damage to each creature.

Trample, hexproof
When Maw of a Thousand Worlds enters, distribute X +1/+1 counters among creatures you control, where X is the number of differently named lands you control.
When Maw of a Thousand Worlds dies, you may remove any number of counters from among permanents you control. For each counter removed this way, draw a card.

Each other colorless creature you control enters with an additional +1/+1 counter on it.

Equipped creature gets +6/+6.
If equipped creature would deal combat damage to a creature or planeswalker, instead gain control of that permanent for as long as you control Glorious Plate.
Equip {6}

When Here Forever enters, exile target creature or planeswalker until Here Forever leaves the battlefield.
At the beginning of your upkeep, the owner of the exiled card loses 1 life.

When Shaidostan Cryoforger enters, exile the top card of your library.
When Shaidostan Cryoforger dies, you may put the exiled card into your hand.

Menace, haste
Whenever Tiger of the Drums attacks, choose one —
• Exile target opponent's graveyard.
• You draw a card and lose 1 life.
• Torment each opponent. (They lose 3 life unless they discard a card or sacrifice a nonland permanent.)

Trample
{3}, Discard Gilded Ram: Draw a card, gain 2 life, and create a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)

Create a 1/1 blue Advisor creature token.
Draw a card.

Flying
As long as there are five or more different creature types among creatures you control, Adventuring Guildmage gets +1/+0 and has hexproof.

Tap up to two target creatures. Put a stun counter on one of them. (If a permanent with a stun counter would become untapped, remove one from it instead.)
Flashback {3}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)