msem-instigator

Vigilance
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.)

Trample
{1}{G}{W}, Discard Enduring Force: Search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle.
{G}{W}: Return Enduring Force from your graveyard to your hand. Activate only as a sorcery.

[+1]: Draw two cards.
[–1]: Until your next turn, Director Amitai Eliahu gains “Other nonland permanents lose all abilities.”
[–3]: You may discard a card. If you do, you may cast a spell that shares a color with that card without paying its mana cost.
[–9]: Until end of turn, play with your library revealed. You may cast spells from your library this turn.

{T}: Add {C}.
{T}: Add {R}, {W}, or {B}. You can't spend this mana to cast a monocolored spell.

(Transform this if it's not attached to a creature. Pay {3}{R}{R} as a sorcery to unattach it.)
Enchant creature you control
Mount of the Order's rider gets +5/+4.
{2}{R}: Target creature can't block Mount of the Order's rider this turn.

({T}: Add {G}.)
Isolated Cloister enters tapped.
{G}, {T}, Reveal a green card from your hand: You gain 1 life.

Whenever a card is put into your graveyard from your library, you may put it on top of your library.
{U}{B}, Sacrifice Rallios' Return: Until end of turn, you may play target card from your graveyard. If that spell would be put into a graveyard, exile it instead.

Whenever Alrathan Scholar deals combat damage to a player or planeswalker, draw a card.
{2}{U}: Target creature gains flying until end of turn.

Exile target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Flying
{1}, Sacrifice a creature: Put a +1/+1 counter on Bloodthirsty Manticore. It gains indestructible until end of turn. Tap it.
Surpass {4}{B}{R} ({4}{B}{R}: Transform this creature. This costs {1} less to activate for each counter on it. Activate only as a sorcery.)

Hexproof
At the beginning of your upkeep, put a card from your hand on top of your library. You may shuffle.
{1}: Look at the top three cards of your library, then put them back in any order.
{2}{U}: Draw a card.

As Joyous Chromatelk enters, choose a color.
All cards that aren't on the battlefield, spells, and permanents are the chosen color in addition to their other colors.
{T}: Add one mana of the chosen color.

Flash
When Fireshaper Adept enters, copy up to one target activated or triggered ability. You may choose new targets for the copy.

{R/G}: Fento, Nova Crusader gains haste and trample until end of turn.
Whenever Fento, Nova Crusader attacks, you may put a creature card from your hand onto the battlefield tapped and attacking. If you do, sacrifice that creature at the beginning of the next end step.

Whenever a land you control enters, create a 1/1 white Soldier creature token with vigilance.
{4}{G}{W}, Sacrifice Protect the Farm: Creatures you control get +2/+2 until end of turn.

When Fretport Bounty Hunter enters, scry 1.

{T}: Target player exiles a card from their graveyard.
{1}, Exile Pinnacle of Purity: Exile all graveyards. Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Whenever The Ever-Pestilent deals combat damage to a player, that player discards a card at random.

{T}: Add {C}.
Tap three differently named untapped Academies you control: Draw a card.

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

When Atrocity of Flesh enters, destroy target nonland permanent.
When Atrocity of Flesh dies, you may exile it. If you do, return target card from your graveyard to your hand.

When Matron of Machines dies, put a +1/+1 counter on up to one target creature.
{3}{W}, Exile Matron of Machines from your graveyard: Create two 1/1 colorless Construct artifact creature tokens. Activate only as a sorcery.

Whenever you cast a Dwarf or Elf spell, exile the top card of your library. You may play it this turn.
Whenever you cast your third spell each turn, Celitiene deals 2 damage to any target. If you control a Dwarf, Celitiene gets +2/+2 and gains trample until end of turn. If you control another Elf, you gain 2 life.

Antu, Sun Spirit can't attack or block unless you control ten or more permanents.
As long as it's your turn, other creatures you control get +X/+0 and have haste, where X is the amount of life you've gained this turn.
When Antu dies or is put into exile from the battlefield, you may put him into his owner's library third from the top.

Whenever another creature you control leaves the battlefield, put a +1/+1 counter on Zealot of Mahara.
Surpass {5}{W} ({5}{W}: Transform this creature. This costs {1} less to activate for each counter on it. Activate only as a sorcery.)