msem-instigator

Siphon (Each -1/-1 counter you put on your creatures up to their remaining toughness while casting this pays for {1}.)
Draw three cards.

Dragon spells you cast cost {1} less to cast.
{1}{R}: Until end of turn, Miyoga Dragonsoul becomes a 2/2 red Dragon creature with flying and “{R}: Miyoga Dragonsoul gets +1/+0 until end of turn.” Activate only as a sorcery.

Enchant land
Enchanted land has “{T}: Exile the top card of your library. If it's a nonland card, you may cast that card this turn.”

Enchant opponent
Enchanted player plays with the top card of their library revealed.
You may cast the top card of enchanted player's library, and you may spend mana as though it were mana of any type to cast it.

Vanishing 3 (This permanent enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
Whenever a time counter is removed from Burning Heels, exile the top card of your library. Until end of turn, you may play that card.

As an additional cost to cast this spell, sacrifice a creature or pay {3}.
Destroy target creature with power 3 or less.

Counter target spell unless its controller pays {2}. If there are three or more counters among permanents you control, counter that spell instead.

Flying, haste
You may cast Charred Phoenix from your graveyard by exiling four permanents you control and/or cards in your hand and/or graveyard as an additional cost.

Whenever you cast a spell during an opponent's turn, creatures you control get +0/+1 until end of turn.

Flying, lifelink
Whenever Kaalia, Sky's End attacks, it deals 2 damage to any target. It deals an additional 2 damage to that target if you control an Angel. The same is true if you control a Demon. The same is true if you control a Dragon.

Create an X/X green and blue Plant creature token, where X is the number of differently named lands you control.

Mirrorgate enters tapped.
When Mirrorgate enters, you choose a nonbasic land card name other than Mirrorgate, then each player chooses a color.
Lands with the chosen name are lands with “{T}: Add one mana of any of the chosen colors,” and lose all other abilities, card types, and land types.
{T}: Add one mana of any of the chosen colors.

Whenever a land you control enters or a land card is put into your graveyard from anywhere, create a 0/1 green Plant creature token.
{3}{G}{G}: Put a +1/+1 counter on each other creature you control.

This spell costs {1} less to cast for each creature type among creatures you control.
Return up to two target cards from your graveyard to your hand. Exile Intersection of Fates.

Trample
{4}{R}{R}: Tortle Tinkerer explores. This ability costs {1} less to activate for each artifact you control. (Reveal the top card of your library. Put it into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then you may put that card in your graveyard.)

Creatures with power greater than the number of cards in their controller's hand can't attack.

Collapsing Ramparts deals damage to target creature equal to twice the number of Satrapies you control.

Flying
At the beginning of your end step, if you gained 4 or more life this turn, create a 4/4 white Angel creature token with flying.

Search your library for a land card, reveal it, put it into your hand, then shuffle.

Trample
Whenever a Warrior you control dies, it deals 1 damage to any target.

Flying, lifelink
Creatures entering or leaving the battlefield don't cause abilities to trigger unless that creature is in a pack. (Two or more creatures a player controls with equal power are in a pack.)

Motivate 1 (When this creature enters, you may motivate target creature with less power than this by putting a +1/+1 counter on it.)

Haste
Whenever another creature you control dies, each opponent loses 1 life and you gain 1 life.

When Globule of Intuition enters or leaves the battlefield, scry 1. (To scry 1, look at the top card of your library. You may put that card on the bottom of your library.)
{2/U}, {T}, Sacrifice Globule of Intuition: Draw a card.

Flying
Vanguard — Whenever a creature you control attacks alone, you may put a +1/+1 counter on it.