msem-instigator

When R-12 Lone Digger enters, it deals 3 damage to target player or planeswalker.

Harmony — Create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”
When Bouquet Singer enters, harmonize. (Trigger up to one harmony of one permanent you control.)

Flash
Hexproof
{3}, Exile two cards from your graveyard: Gain control of target spell or permanent if it shares a type with both of those cards.

Each other creature you control that's an Elf or a Warrior gets +1/+1.
{2}, Sacrifice Llanowar Exemplar: Creatures you control gain indestructible until end of turn.

When Political Opportunist enters, you may shuffle the cards from your hand into your library, then draw that many cards.

Target creature gets -1/-1 until end of turn.
Threshold — You may destroy that creature instead if seven or more cards are in your graveyard.

Reach
When Oaken Sentry enters, you gain 1 life for each creature card in your graveyard.

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

At the beginning of your end step, if you control two or more artifacts and/or enchantments, transform Avacyn's Partisan.

Menace
Whenever another creature dies, put a +1/+1 counter on Veilborn Stalker.

Target creature and all other creatures with the same name as that creature get +2/+0 until end of turn.

Flying, trample
Crew 8
When Dragon Emperor's Chariot enters, create a 4/4 red Dragon creature token with flying.
Whenever Dragon Emperor's Chariot attacks, it deals 4 damage divided as you choose among any number of targets.

Whenever Rallying Guardian becomes untapped, creatures you control get +2/+0 until end of turn.

Destroy target artifact.
Catalyze. (The next spell you cast this turn costs {1} less to cast.)

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.

Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)
Whenever a creature you control with a +1/+1 counter on it deals combat damage to a player, arm that creature. (Create a colorless Equipment artifact token with “Equipped creature gets +1/+0” and equip {2}, then attach it to that creature.)

Target creature gets +1/+3 until end of turn.

When Persecution Official enters, choose a creature card name.
Cards with the chosen name can't be cast.

As an additional cost to cast this spell, discard a card.
Search your library for a card with mana value X or less, where X is 1 plus the discarded card's mana value, reveal it, put it into your hand, then shuffle.

Flash (You may cast this spell any time you could cast an instant.)
When Volatimancer enters, you may have target creature have base power and toughness 1/1 until end of turn.

Target creature gets -X/-X until end of turn, where X is 2 plus the number of cards named Undead Servant in your graveyard.
As long as this card is in your graveyard, its name is Undead Servant.

As Vanquisher's Banner enters, choose a creature type.
Creatures you control of the chosen type get +1/+1.
Whenever you cast a creature spell of the chosen type, draw a card.

Spells with mana value 5 or greater can't be cast.

Encourage ({T}: Another target creature you control gets +1/+1 until end of turn. Encourage only as a sorcery.)
Whenever Topan Curemaster encourages a creature, you gain 1 life.

Whenever an attacking creature you or a teammate controls dies, you lose 1 life and draw a card.