msem-instigator

Flash
When Agent of Equilibrium enters the battlefield, destroy target creature or planeswalker an opponent controls that was dealt damage this turn.

[+1]: Exile up to one other target nonland permanent. As long as it remains exiled, its owner may pay {1} as a sorcery to put it onto the battlefield.
[–3]: Choose 0, 1, or 2. Each player sacrifices that many creatures.
[–4]: You get an emblem with “If a nonland, nontoken permanent would enter the battlefield and it wasn't cast, you may exile it instead.”

Whenever one or more counters are put on a permanent you control for the first time each turn, create that many 1/1 green Squirrel creature tokens.
{1}{G}{W}, {T}: Proliferate. (Choose any number of permanents and/or players with counters on them, then give each another counter of each kind already there.)

Rapport — Whenever Ainok Brushwacker and at least one other creature you control become tapped, Ainok Brushwacker gains first strike until end of turn.

Whenever Ainok Caretaker or another Hound you control attacks, untap that creature and it gets +1/+1 until end of turn.

Whenever another creature named Ainok Pack enters the battlefield under your control, you gain 2 life.

As long as Ajani Enlightened has an odd or even number of loyalty counters on him, he has protection from mana values of that quality.
[+1]: You gain 2 life. Untap up to two target lands.
[0]: Each player may draw a card. For each opponent that does, you draw a card.
[–3]: Create a 4/4 white Avatar creature token with “This creature can't attack if you control an Ajani planeswalker.”

[+1]: Distribute two +1/+1 counters among up to two target creatures. You gain 2 life.
[–1]: Create a 2/2 green Cat Warrior creature token.
[–3]: Exile target creature. Its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle.
[–7]: You get an emblem with “Creatures you control get +X/+X, where X is your life total.”

Vigilance
{1}{G}: Ajani's Advocate gets +2/+2 until end of turn. Activate only once each turn.

Aurashaper and Aura spells you cast cost {1} less to cast.

Vigilance
When Akrasan Sentry enters the battlefield, untap target creature.

Choose two —
• Target player creates two 1/1 white Soldier creature tokens.
• Exile target attacking creature.
• Creatures target player controls gain indestructible until end of turn.
• Put a +1/+1 counter on target creature and untap it.

[+1]: Create a 1/1 white Soldier creature token.
[–2]: Until end of turn, target creature you control gets +3/+3 and other creatures you control get +1/+1.
[–8]: You get an emblem with “Each creature you control gets +1/+1 for each other creature you control.”

Haste
Heroic — Whenever you cast a spell that targets Akroan Siege Captain, put a +1/+1 counter on each creature you control.

When Alaina enters the battlefield, each opponent loses X life and you gain X life, where X is the number of Clerics you control.
{W}{B}, Pay 2 life: Return Alaina from your graveyard to your hand. Activate only if you have more life than your starting life total.

Vigilance, lifelink
At the beginning of each end step, if you gained life or glory this turn, you get a glory counter. (You lose glory counters before life. A player with ten or more glory counters wins the game.)

Create two 3/1 red and white Goblin Soldier creature tokens with haste. Creatures you control gain indestructible until end of turn.

As long as you have 25 or more life, Alia's Enforcer gets +2/+2 and gains flying.
Whenever an artifact or enchantment enters the battlefield under your control, you gain 1 life.

As long as you have more life than each opponent, prevent all combat damage that would be dealt to Alia, Bearer of Morning.
[+1]: You gain 4 life.
[–2]: Exile target tapped creature. Each player draws a card.
[–8]: You get an emblem with “{W}, Pay X life: Exile target creature with power X or less.”

Whenever you cast a noncreature spell, put a quest counter on Align the Astrolabe.
At the beginning of your upkeep, create a 1/1 colorless Construct artifact creature token for each three quest counters on Align the Astrolabe.

Whenever Align with Animus Vox enters the battlefield or you attack with three or more creatures, crystallize. (Put a +1/+1 counter on a creature you control or create a Treasure.)

Flying, first strike, vigilance, trample, lifelink
{4}: Put a +1/+1 counter on Alin and Meva, Warqueens.

Creatures you control gain vigilance until end of turn. After this main phase, there's an additional combat phase followed by an additional main phase.
Compose (Then if you cast this from your hand, exile it and create a Saga token with “III—You may cast a copy of this card from exile without paying its mana cost.”)

Enchant creature
Enchanted creature gets +1/+1 for each artifact and/or enchantment you control.

Destroy up to X target artifacts and/or enchantments. If X is 3 or more, you gain twice X life. If X is 6 or more, create two X/X Elemental creature tokens that are all colors.