msem-instigator

[+1]: Until end of turn, Winmeari, Glorian Defector becomes a 4/4 Angel creature with flying and lifelink that's still a planeswalker. Prevent all damage that would be dealt to her this turn.
[0]: Create a 2/2 black Zombie creature token.
[–1]: You get an emblem with “Attacking creatures your opponents control must attack a Winmeari planeswalker if able.”

Golden age (If you cast an instant or sorcery spell, activated a nonmana ability, and attacked this turn, enter a renaissance for this game.)
{1}, Sacrifice a creature: Draw a card. Each opponent loses 1 life and you gain 1 life.
Whenever you sacrifice a creature, if you're in a renaissance, each opponent sacrifices a creature. This ability triggers only once each turn.

This spell costs {1} less to cast for each creature that died this turn.
At the beginning of your upkeep, put target creature card from a graveyard onto the battlefield under your control.
{1}, Sacrifice another creature: Zarad, the Final Adversary gains indestructible until end of turn.

Until end of turn, creatures you control get +1/+1 and creatures your opponents control get -1/-1.

Lifelink
When Zhehan, the Mediator enters, you may put an Aura card with mana value 3 or less from your hand onto the battlefield attached to a creature it could enchant.

[+1]: Each opponent discards a card. If a land card is discarded this way, create a 1/1 colorless Spirit creature token with flying.
[–2]: Until end of turn, creatures you control get +1/+1 and creatures your opponents control get -1/-1.
[–6]: Each opponent chooses up to one permanent they control of each permanent type, then sacrifices the rest.

Abandoned Hideout enters tapped if you control another nonbasic land.
{T}: Add {U} or {R}.

Bleed {1}{U/R} (You may cast this spell for its bleed cost if an opponent has lost life this turn.)
Copy target instant or sorcery spell. You may choose new targets for the copy.

This spell costs {2} less to cast if you've cast both an instant spell and a sorcery spell this turn.
Haste

{T}, Discard a card: Draw a card from each of your libraries.
{1}{U}{R}, {T}, Discard your hand: Return each Study card from your graveyard to your hand.

[+1]: Draw two cards. At the beginning of your next end step, discard your hand.
[–3]: You get an emblem with “At the beginning of your upkeep, put a loyalty counter on each Aerida planeswalker you control.”
[–5]: Take an extra turn after this one.

When Aether Road Caravan enters, gain control of target nonland permanent with mana value 3 or less for as long as you control Aether Road Caravan.

Prowess
At the beginning of each end step, if you cast a multicolor spell or two spells with different colors this turn, each opponent sacrifices a permanent.

This spell can't be countered.
Flying
Whenever Ajax, Tyrant of the Empire enters or deals combat damage to a player, draw a card.
Whenever Ajax or another Dragon you control attacks, that Dragon deals 2 damage to any target.

Defender
Whenever you cast an instant or sorcery spell, you may untap Almgrove Sentinel.
{T}: Almgrove Sentinel deals 1 damage to any target.

Whenever Almgrove Spellblade attacks, harmonize. (Trigger up to one harmony of a permanent you control.)
Harmony — Exile the top two cards of your library. Until end of turn, you may play cards exiled by Almgrove Spellblade.

Flying, prowess
Whenever an artifact you control enters, you may draw a card. If you do, discard a card.

The owner of target creature or planeswalker shuffles it into their library, then they may create two 1/1 blue Bird creature tokens with flying. If they don't, they reveal cards from the top of their library until they reveal a nonland permanent card, then they put that card onto the battlefield and shuffle the rest into their library.

Flash
Flying
Once during each of your opponent's turns, when you cast a spell, you may pay {1}{U/R}. If you do, copy it. You may choose new targets for the copy. (If it's a permanent spell, the copy becomes a token.)

{U}, Exile an instant or sorcery card from your graveyard: Draw a card, then discard a card.
{R}, Exile an instant or sorcery card from your graveyard: Arcane Harvesters deals 1 damage to any target.

Arcane Oasis enters tapped unless you control another Desert.
{T}: Add {U} or {R}.

Until end of turn, creatures you control get +1/+1 and gain prowess. If there are two or more instant and/or sorcery cards in your graveyard, draw a card.

Menace, haste
As long as Arleigh, Spellblade Prodigy is tapped, the first spell you cast during each other player's turn costs {U/R} less to cast. This effect reduces only the amount of colored mana you pay. (For example, if you cast a spell with mana cost {1}{R}, it costs {1} to cast.)

Flash
When Ascetic of Imbalance enters, draw two cards, then discard two cards. If you discarded two cards that don't share a type, Ascetic of Imbalance deals 2 damage to any target.

When Backstage Tinkers enters, you may return an artifact card from your graveyard to your hand.