msem-instigator

Menace
{1}{B}, Exile another three cards from your graveyard: Return Determined Explorer from your graveyard to your hand.

Whenever Determined Hero attacks, upgrade it. (Give it one of the listed counters it doesn't already have.)
• +1/+1
• Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)

Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)
When Determined Koi has three or more +1/+1 counters on it, remove them all and transform it.

{2}{B}, Sacrifice Determined Slayer: Exile up to three target cards from target player's graveyard. They lose that much life.

Whenever Determined to Prevail or another artifact or enchantment you control enters, target creature you control gets +1/+1 and gains indestructible and vigilance until end of turn.

When Detritus Scourge enters, you mill eight cards. Put a +1/+1 counter on Detritus Scourge for each creature card milled this way.

Choose one —
• Permanents you control gain lifelink and indestructible until end of turn.
• Search your library for a card, put it into your hand, then shuffle.
• Destroy target nonland permanent.

Target creature gets -2/-2 until end of turn.
Dominance — That creature gets -4/-4 until end of turn instead if you control the creature with the greatest power or tied for the greatest power.

Destroy target noncreature permanent.
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 gets +5/+5 until end of turn.
Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, destroy up to one target artifact.

Trial 3 (As you cast this spell, an opponent of your choice may pay 3 life. If they don't, they fail the trial.)
When Devilish Undoer enters, if the trial was failed, return target creature card from your graveyard to your hand.

Menace
When Devious Kalku enters, you may search your library for a card, put that card into your graveyard, then shuffle.

Flash
When Devious Naiad enters, exchange control of it and target creature until end of turn. Untap that creature. It gains haste until end of turn.

Whenever a storied permanent you control enters, you gain 1 life and each opponent loses 1 life. (Enchantments and legendary permanents are storied.)

Look at the top three cards of your library. Put two of them into your hand and the rest into your graveyard. You lose 2 life.

Equipped creature gets +2/+2 and has flying.
At the beginning of your upkeep, if Devised Battlesuit is attached to a non-Artificer creature, sacrifice Devised Battlesuit.
Equip {4}

If you control an artifact, create three 1/1 colorless Construct artifact creature tokens. Otherwise, create one of those tokens.

Until end of turn, target blocked creature you control gains trample and “Whenever this creature deals combat damage to a player, draw that many cards.”

Lifelink
Sacrifice Devoted Apothecary: Remove a counter from target permanent.

Exile the top two cards of your library. Until your next end step, you may play those cards.
Whenever you cast your third spell each turn, you may exile Devoted Artistry from your graveyard. If you do, you may cast a copy of it at the beginning of your next upkeep. (You still pay its costs.)

Sacrifice Devoted Dancer: Target creature gains indestructible until end of turn. If it's your turn, shuffle Devoted Dancer into its owner's library.

Vigilance (Attacking doesn't cause this creature to tap.)

Whenever a creature you control assaults, put a +1/+1 counter on Devoted Nomad.

Flying
At the beginning of your upkeep, for each seven cards in your graveyard, Devotee of Winds explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.)

Target creature you control deals damage equal to its power to another target creature. You gain life equal to the damage dealt this way.