msem-instigator

(Choose only one work as a sorcery to add its ability.)
When Peacetime Murals enters, draw three cards and you gain 3 life.
{2}{G}: Grow as Two
Whenever you activate an ability of a creature you control, create a token that's a copy of that creature except it isn't legendary. This ability triggers only once each turn.
{2}{U}: A Better Mankind
Whenever a creature you control enters, you may activate one of its abilities without paying its costs. This ability triggers only once each turn.

As an additional cost to cast this spell, sacrifice a land.
Create a 6/6 red Wurm creature token with “This creature can't be blocked by creatures with flying.”

This spell costs {X} less to cast, where X is the number of Dwarves and Elves you control.
Trample, haste
Whenever Harl and Finn attacks, other creatures you control get +1/+1 and gain trample until end of turn.

{X}{X}{W}, {T}, Sacrifice Tome of Loss: Return each creature card with mana value X or less from your graveyard to the battlefield.

Instant and sorcery spells you control have rerun. (Exile the spell as it resolves if you cast it from your hand. Whenever a creature you control dies, you may cast that card from exile without paying its mana cost.)

Choose one —
• Destroy all creatures.
• Create a 4/4 white Angel creature token with flying and vigilance.

Flying
When Sage of Dilemmas enters, return up to one target enchantment to its owner's hand.

Return up to one target creature or planeswalker card from your graveyard to your hand. Each opponent loses 3 life and you gain 3 life.

Hexproof
Discard two cards: You may cast target instant or sorcery card in your graveyard this turn. If that spell would be put into a graveyard, exile it instead.
At the beginning of your end step, if you have two or fewer cards in hand, transform Fahrib.

When Dawson's Bouncer enters, choose one —
• Put a +1/+1 counter on Dawson's Bouncer.
• Create a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)

Molten Ritual deals 3 damage to target creature. If that creature would die this turn, exile it instead.

When Weaver of Mists enters, substantiate target card in your graveyard. (Put it onto the battlefield face down as a 2/2 creature. You may turn it face up and cast it at any time for its mana cost if it isn't a creature.)
Spells you cast from anywhere other than your hand cost {1} less to cast.

Flying
Other Spirits you control get +1/+1.
Whenever a Spirit you control attacks, you gain 1 life.

Whenever a nontoken creature you control dies, create a 1/1 black and green Citizen creature token and you gain 1 life.

Flash
Flying

Draw a card for each creature you control with a permanent attached to it.

Target player can't cast spells this turn.
Fabled {2}{W}{U} (Then if you cast this for its fabled cost, put it onto the battlefield transformed attached to that player.)

Draw a card.
Whenever Seek Guidance is put into your graveyard from your hand or library, scry 2. (This doesn't include being cast.)

Search your library and/or graveyard for a creature card with mana value X or less and put it onto the battlefield with an additional -1/-1 counter on it. If you search your library this way, shuffle.

When Journey through Kareki enters, draw a card, then choose a creature card name.
Creatures you control with the chosen name get +1/+1.

Reveal the bottom four cards of your library. Choose up to one permanent card with mana value 3 or less from among them and put it onto the battlefield. Put the rest on the bottom of your library in any order.

Transcend (Activate as a sorcery to gain the next type and a +1/+1 counter.)
Flying
Tamaak the Arid Swarm can only transcend if you've sacrificed a permanent this turn.
{B}{G}: Demon — Create two 1/1 black Insect creature tokens with flying.
{X}{B}{G}: Elder — Destroy each other nonland, nontoken permanent with mana value X or less.

Recruit. (Create a 0/0 white Soldier Army creature token, then put a +1/+1 counter on each Army you control.)
Target creature you control fights target creature you don't control.

[+2]: You may draw a card. If you don't, create a Treasure token. Repeat this process once.
[0]: Iviana deals X damage to each creature you don't control, where X is 2 plus twice the number of Dragons you control.
[–3]: Create a 5/5 red Dragon creature token with flying and haste.