msem-instigator

As long as you control another artifact, Ruin Guardian gets +1/+1.

Exile target creature. Its controller reveals cards from the top of their library until they reveal a creature card. The player puts that card onto the battlefield, then shuffles all other cards revealed this way into their library.

Flying
Tap five untapped Satrapies you control: Untap all creatures you control. After this main phase, there is an additional combat phase followed by an additional main phase. Activate only as a sorcery.

Distorted (This creature can be blocked by tapped creatures but not untapped creatures.)
Oslyd Heretic gets +1/+1 as long as you control no other creatures.

{T}: Add {C}.
{3}, {T}, Sacrifice Treasure Beach: Create three Treasure tokens. (They have “{T}, Sacrifice this artifact: Add one mana of any color.”)

Flash
Whenever you draw a card during an opponent's turn, you get a glory counter. (You lose glory counters before life. A player with ten or more glory counters wins the game.)

Target player loses 3 life and you gain 3 life. (Then exile this card. You may cast the creature later from exile.)

At the beginning of your end step, amass Soldiers 1. (Put a +1/+1 counter on an Army you control. It's also a Soldier. If you don't control one, create an 0/0 black Soldier Army creature token first.)

Target creature gets +3/+0 and gains first strike until end of turn.

Vigilance, reach
As a noncreature spell resolves, exile it instead of putting it anywhere else.

Creatures you control get +1/+1 until end of turn.
Showcase {2}{W}{W} (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.)

Lifelink
Forestcycling {1}, islandcycling {1} ({1}, Discard this card: Search your libary for a Forest or Island card, reveal it, put it into your hand, then shuffle.)

{T}: Add one mana of any color. Spend this mana only to cast a multicolored spell.

Improve {1} ({1}: Put a +1/+1 counter on this creature. This costs {1} more to activate for each +1/+1 counter on it. Improve only as a sorcery.)
Once each turn, when one or more counters are put on a permanent you control, create a 1/1 colorless Human creature token.
Whenever you attack with three or more creatures, destroy up to one target artifact or enchantment.

Whenever another creature you control dies, creatures you control get +1/+0 until end of turn.
Whenever this creature attacks, you may pay {2}{R} and sacrifice another creature. If you do, this creature gains menace until end of turn.

Flash
Creatures you control that have entered this turn get +1/+1 and have haste and first strike.

Exile any number of target creatures you control. At the beginning of the next end step, return to the battlefield tapped each creature card exiled this way and each creature card put into your graveyard from the battlefield this turn.

{T}: Add {C}.
{T}, Reappropriate: Add {R} or {W}. (Exile exactly two cards from your hand and/or graveyard.)

Exile target creature or planeswalker card from a graveyard. Search its controller's hand, graveyard, and library for any number of cards with the same name as that card and exile them. Then that player shuffles.

You lose 1 life and exile the top card of your library. You may repeat this process any number of times. Then put up to two cards exiled this way into your hand.
Coalesce {5}{B}{B} (You may cast this from your graveyard for {5}{B}{B}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)
Black Hole Musings's power is equal to the number of cards in exile.

Flying
Tizerus Bats can't block unless you control another creature with flying.

Tap two untapped Elves you control: Add {G}{G}.
{6}{G}{G}: Create an 8/8 green Elemental creature token.

At the beginning of your end step, you may put a progress counter on Custom Armaments.
[progress 1-3] Sacrifice Custom Armaments: Destroy target blocked creature.
[progress 4+] Sacrifice Custom Armaments: Exile up to two target blocked creatures.
Sacrifice CARDNAME: Exile up to two target blocked creatures.

Spells your opponents cast that target Onigori, Ema's Shield cost {2} more to cast.
Whenever Onigori deals combat damage to a player, that player can't untap more than two permanents during their next untap step.

Haste
When Doomed Alchemist dies, create two Treasure tokens. (They're artifacts with “{T}, Sacrifice this artifact: Add one mana of any color.”)