msem-instigator

Whenever a creature enters, it fights another target creature of its controller's choice.

Choose one or both —
• Tap target creature.
• Untap target creature.

Reach
As Celestial Principality enters, choose a number.
Noncreature spells with mana value equal to the chosen number can't be cast.

Counter target creature spell. Scry 2.
Foresee — As you draw Aurora's Whisper, you may reveal it and pay {U}. When you do, return target creature with mana value 3 or less to its owner's hand.

[+1]: Mill four cards, then return up to one creature card milled this way to your hand. You may activate a different loyalty ability Vivien has this turn.
[+1]: Create a 2/2 green Cat Spirit creature token with “When this creature dies, you gain 2 life.”
[–3]: Choose target creature you don't control. If it has flying, destroy it. Otherwise, up to one target creature you control deals damage equal to its power to that creature.
[–9]: Create four 4/4 green Hydra creature tokens. Creatures you control gain trample and haste until end of turn.

Flying, vigilance
As Archon of the Accord enters, choose a number.
Spells with mana value equal to the chosen number can't be cast.

Chronicle (As this enters and after your draw step, add a lore counter. Stop after III.)
[Lore I-II] Tap target creature you don't control.
[Lore III] Tap target creature you don't control. It doesn't untap during its controller's next untap step.

At the beginning of your upkeep, mill a card.
{1}, Exile three cards from your graveyard: Put a -1/-1 counter on target creature.

Whenever Treasure Hauler attacks, draw a card.
Crew 3 (Tap any number of creatures you control with total power 3 or greater: This Vehicle becomes an artifact creature until end of turn.)

Flying
Nectarkin enters with a +1/+1 counter on it.
Whenever Nectarkin deals combat damage to a player, permutate. (You may remove a counter from a creature you control. If you do, put two +1/+1 counters on a different creature you control.)

Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Destroy target creature if it has mana value 4 or greater. If Shatter Facade was cast from exile, destroy that creature if it has mana value 3 or less instead.
Orchestrate {B} (You may exile this card from your hand anytime you could cast a sorcery for its orchestrate cost. When you next resolve a spell, you may cast this from exile without paying its mana cost.)

{R}, Tap two untapped artifacts you control: Incineration Expert deals 1 damage to any target.
{3}{R}, Tap eight untapped artifacts you control: Incineration Expert deals 8 damage to any target.

Ralora, Unforgiving Depths enters tapped.
Whenever a source deals damage to you, put a creation counter on Ralora.
{T}, Remove ten creation counters from Ralora and sacrifice it: It deals 10 damage to target player or planeswalker.

Flash
Enchant creature
Enchanted creature gets -2/-2 and can't block creatures you control.

Vigilance
Art of war — At the beginning of your end step, if Teikoku Samurai dealt damage to an opponent this turn, put a +1/+1 counter on it.

Deathtouch, lifelink
Whenever Batwing Initiate deals combat damage to a player, put a +1/+1 counter on it.
Pay 4 life: Batwing Initiate gains flying until end of turn.

Discard your hand, then draw two cards.
Agonize (You may cast this card from your graveyard by putting a -1/-1 counter on a creature you control in addition to paying its other costs. Then exile this card.)

When Beyond the Boneyard enters, exile another target nonland permanent until Beyond the Boneyard leaves the battlefield.
Your opponents can't cast spells that share a card type with the exiled card during postcombat main phases.

Deathtouch
When Aldrane's Masterpiece enters, look at the top six cards of your library. You may put a Zombie card with lesser mana value from among them onto the battlefield. Put the rest on the bottom of your library in a random order.
Other Zombies you control get +1/+1.

Silent Doom enters tapped.
You may cast Silent Doom from your graveyard as long as you sacrificed a permanent this turn.
Cycling {B} ({B}, Discard this card: Draw a card.)

If a creature entering the battlefield under your control causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.
{1}{U}, {T}: Exile another target creature. Return it to the battlefield under its owner's control at the beginning of the next end step.

Defender
Foliage Hunter has deathtouch as long as you've cast a spell this turn.

You gain 3 life. Choose one —
• Destroy target artifact.
• Destroy target enchantment.
• Destroy target creature with flying.

Whenever a nontoken creature with mana value 3 or less you control enters, exile it. If you do, create a token that's a copy of it, except it's a Construct creature instead of its other types.