msem-instigator

Each player returns each instant and sorcery card from their graveyard to their hand. Exile Ebb and Flow.

Vigilance
Each nontoken creature you control gets +1/+1 for each other creature on the battlefield with the same name as it.

Target creature gets +X/+X until end of turn, where X is 3 plus the number of cards named Elemental Power in your graveyard.

Exile up to three target cards from a single graveyard. Create a tapped 2/2 colorless Spirit creature token.

Haste
{W}, {T}: Tap target creature.

This spell costs {1} less to cast for each other card in your hand.
If you have fewer than seven cards in hand, draw cards equal to the difference.

If a player would draw one or more cards, instead that player draws that many cards plus one and loses 1 life.

Reveal the top three cards of your library. For each of those cards, put that card into your hand unless an opponent has Fate in Flames deal 3 damage to them. Then exile the rest.

Fiery Embrace deals X damage to any target, where X is 2 plus the number of cards named Fiery Embrace in your graveyard.

{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.

{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.

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.

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.

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, you may exile target enchantment you control. Return that card to the battlefield under your control at the beginning of the next end step.