msem-instigator

[+1]: Create a 1/1 colorless Elemental creature token. Put a loyalty counter on each planeswalker you control.
[+1]: Untap up to two target permanents.
[–7]: You get an emblem with “Whenever you create a token, draw a card.” Create three 4/4 green Chimera creature tokens.

Whenever you pay a tithe, you may pay {2}. If you do, each opponent loses 3 life and you gain 3 life.

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

Each creature gets -X/-X until end of turn. Destroy each artifact and enchantment with mana value X or less.

Trample

Flying, trample, haste
{W}{U}{B}{R}{G}: Create a token that's a copy of another target creature except it's all colors and has haste.
{W}{U}{B}{R}{G}, Exile Soul of Iscathia from your graveyard: Create a token that's a copy of target creature except it's all colors and has haste.

Protection from colored spells
{5}{C}{C}: Exile target colored permanent.
{5}{C}{C}, Exile Soul of Muetar from your graveyard: Exile target colored permanent.

When Soulcarver enters the battlefield, destroy up to one target non-Demon creature. If you do, create a 2/2 black Demon creature token and draw a card.

Sparkmage Prodigy has first strike as long as it's your turn.
Whenever you cast a cryptic spell, Sparkmage Prodigy deals 1 damage to each opponent. (Artifacts, enchantments, and modal spells are cryptic.)

Flash (You may cast this spell any time you could cast an instant.)
When Spell Shackle enters the battlefield, exile target instant or sorcery spell. (That spell won't resolve.)
{1}{U}, Sacrifice Spell Shackle: Cast the exiled card without paying its mana cost.

Whenever Sphinx's Grandeur or another enchantment enters the battlefield under your control, create a 1/1 white Soldier creature token.
Creatures you control get +1/+1.

Flying
Shimmer (Whenever this creature attacks, create a tapped and attacking token that's a copy of it. Exile the token at the beginning of the end step.)

Equipped creature gets +1/+1.
At the beginning of combat on your turn, choose flying, first strike, vigilance, trample, or haste. Equipped creature gains that ability until end of turn.
Equip {2}

Shimmer (Whenever this creature attacks, create a tapped and attacking token that's a copy of it. Exile the token at the beginning of the end step.)
Each other creature you control gets +1/+1 for each creature you control with the same name as it. (A token's name is its creature types unless specified.)

Whenever Stealer of Secrets deals combat damage to a player, draw a card.

({T}: Add {U} or {R}.)
Steamlit Peaks enters the battlefield tapped.
{1}, {T}: Add {U}{U} or {R}{R}.

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Choose one or three —
• Target opponent loses 3 life.
• Return target creature card with mana value 3 or less from your graveyard to the battlefield.
• Conjure a card named Fatigue and put it on top of your library. (It's a colorless sorcery that costs {2} with “Draw a card.”)

Haste
Storm Entity enters the battlefield with a +1/+1 counter on it for each other spell cast this turn.

Flying
{B}, Sacrifice another creature: Draw a card.

{2}{W}: Prevent all damage that would be dealt to and dealt by Suncaller Nymph this turn.

Sunspear Surge deals 2 damage to target creature and 1 damage to each other creature.

Whenever Supreme Mechanothurge or another artifact enters the battlefield under your control, up to one target artifact you control becomes a copy of another target artifact or creature you control, except it's an artifact in addition to its other types.

Swarming Midden enters the battlefield tapped unless you control a basic Swamp.
{T}: Add {B}.
{1}{B}{B}: Swarming Midden becomes a 2/3 black Rat creature with menace until end of turn. It's still a land. Whenever it attacks this turn, create a 1/1 black Rat creature token with “This creature can't block.”