msem-instigator

Target creature you control fights another target creature. If either of those creatures would die this turn, exile it instead.

{T}, Sacrifice Forgewatcher: Add two mana of any one color. If that mana is spent on a creature spell, it gains haste until end of turn.

({T}: Add {B}.)
Forgotten Pit enters tapped.
Deathtouch
{2}{B}{B}: Forgotten Pit becomes a creature in addition to its other types until end of turn.

{B}{R}, Sacrifice a creature: Create a token that's a copy of Forlorn Companion, except it has no mana cost.

Enchant creature
Enchanted creature gets -1/-1 and can't block.
Enchanted creature gets an additional -1/-1 for each card named Garrote in your graveyard.

Whenever one or more creatures you control attack, create a 1/1 white Human Samurai creature token.

Equipped creature gets +2/+1.
Whenever equipped creature becomes untapped, you draw a card and you gain 2 life.
Equip {3}

When Ginjiro Chimei enters, you may search your library for a card with an activated ability, put it into your graveyard, then shuffle.
You may cast Ginjiro Chimei from your graveyard by paying 2 life in addition to paying its other costs.

Counter target spell. If that spell is countered this way, put it on the bottom of its owner's library instead of into that player's graveyard.

When Gruff Smith enters, you may destroy target artifact. If you do, that artifact's controller creates a colorless Equipment artifact token with “Equipped creature gets +1/+1” and equip {1}.
Recite {1}{R} (You may cast this creature from your graveyard for its recite cost. If you do, exile it when it enters or if it would leave the battlefield.)

Spirited (When this creature enters, you may activate one of its activated abilities without paying its cost.)
{U}, {T}: You may tap or untap target Human.

Flying
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.)

Menace
Spirited (When this creature enters, you may activate one of its activated abilities without paying its cost.)
{3}{R}: Another target creature you control gains menace until end of turn.

You may have Hero of Shengin Province assign its combat damage as though it weren't blocked.
{2}{G}: Until end of turn, you may have creatures you control assign combat damage as though they weren't blocked. Activate only if Hero of Shengin Province is in your graveyard.

When Hinode, the Sacred Summit enters, draw a card, then choose a creature card name.
Creatures you control with the chosen name have flying, vigilance, and lifelink.

Whenever a creature dies, exile it.
Hiroto Jaakuna has all activated abilities of creature cards exiled with Hiroto Jaakuna.

When Hirukari's Immortal dies, if it didn't enter this turn, create a token that's a copy of it, except it has no mana cost.

If a permanent with spirited entering the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

Prevent all damage that would be dealt to you and permanents you control.

Create a 1/1 white Human Samurai creature token, then create an additional one of those tokens for each card named Honor and Glory in your graveyard.

When Honored Retinue enters, choose a creature you control. You may search your library for a creature card with the same name as that creature, reveal it, put it into your hand, then shuffle.

When Horizon Treader enters, exile target enchantment you control, then return that card to the battlefield under your control.

Spirited (When this enters, you may activate one of its activated abilities without paying its cost.)
Equipped creature gets +3/+2.
Equip {2}

As an additional cost to cast this spell, pay X life.
Ignition Ritual deals X damage to each creature and each planeswalker.

Choose a card in your graveyard. Search your library for a card with the same name as that card, reveal it, put it into your hand, then shuffle.