msem-instigator

Ammbradu Parasite gets +1/+1 as long as you control a Forest.
{4}{G}: Target creature must be blocked this turn if able.

Bleed {R} (You may cast this spell for its bleed cost if an opponent has lost life this turn.)
Amongst the Flames deals 2 damage to each creature.

You may activate abilities of nonland permanents your opponents control.

Create two 1/1 blue Elemental creature tokens with flying.
Reconstruct {7}{U} (You may cast this from your graveyard for its reconstruct cost reduced by the mana value of a permanent you sacrifice as you cast it this way. Then exile this.)

Flying
{1}{W}{U}: Submerge another target creature. When An and En, Destined Souls leaves the battlefield, turn that creature face up. (To submerge a card, exile it, then put it on the battlefield face down under its owner's control as a 2/2 creature.)

Destroy target nonbasic land.
Abound. (To abound, you may cast a spell that costs less than this from your hand without paying its mana cost.)

Return up to two target creature cards from your graveyard to your hand.

When Ancestral Council enters, search your library for an instant or sorcery card with mana value 2 or less, reveal it, put it into your hand, then shuffle.

{T}: Add one mana of any color.
{4}, {T}, Sacrifice Ancestral Tapestry: Search your library for a legendary card, reveal it, put it into your hand, then shuffle.

Flash
When Ancestral Warlord enters, it deals 1 damage to each blocking creature.

{3}, {T}: Ancient Artillery deals 1 damage to target creature or planeswalker and 1 damage to that permanent's controller.

Choose one—
• You gain life equal to the number of artifacts you control.
• You gain life equal to the number of enchantments you control.

Target creature gains indestructible until end of turn. Untap it.
Draw a card.

Defender
Andazir Elite can attack as though it didn't have defender as long as it's equipped.

Exile target nonland permanent. You lose 3 life.

Whenever Anima Interrogator attacks, defending player reveals a card at random from their hand.

{T}: Add {G}.
{G}, {T}: Target creature gains trample until end of turn.

Exile target attacking creature. You get a glory counter. (You lose glory counters before life. A player with ten or more glory counters wins the game.)

Exile target blocking or blocked creature. If that creature had a +1/+1 counter on it, you gain life equal to its power.

When Anointed General enters, if you control a legendary creature, Anointed General deals 4 damage to target creature you don't control.

Search your library for up to ten land cards, reveal them, and shuffle them into a new face-down library.

You may play an additional land on each of your turns.
Whenever Antali Archdruid attacks, if two or more lands you control entered this turn, Antali Archdruid deals 3 damage to any target and you gain 3 life.

Flip a coin until you lose a flip or choose to stop flipping. Exile the top X cards of each player's library, where X is 1 plus the number of flips you won. You may play those cards until the end of your next turn, and you may spend mana as though it were mana of any color to cast those spells.