msem-instigator

When Alenian Cruel-Star enters, put a +1/+1 counter on it if you control another Goblin.

Equipped creature gets +1/+0 for each Equipment attached to it.
Equip {1}

Aleud Beastmaster has frenzy X, where X is the number of unblocked attacking creatures you control. (Whenever it attacks and isn't blocked, it gets +X/+0 until end of turn.)

Flying
Whenever a creature enters under an opponent's control, you may pay {1}{B}. If you do, fateseal 1. (Look at the top one cards of an opponent's library, then put any number on the bottom and the rest on top in any order.)

Vanishing 2 (This permanent enters with two 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 All Who Wander, you gain 2 life and scry 1.

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

You gain 4 life. Then if you have more life than an opponent, draw a card.

Whenever Almgrove Bladesinger attacks, harmonize. (Trigger up to one harmony of a permanent you control.)
Harmony — Target creature can't block this turn.

First strike
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.)
Almgrove Champion can only attack or block alone.

Enchant land
Enchanted land has “{T}: Add one mana of any color.”
{3}, Sacrifice Alpha Trial: Conjure a card named Test Run into your hand. (It's a sorcery that costs {X}{G} with “Create an X/X green Mutant creature token. Draw a card.”)

Alquyut Mount can't attack or block alone.

Sabotage — Whenever an opponent or permanent an opponent controls becomes the target of a spell you control, return target creature card with mana value 3 or less from your graveyard to the battlefield.

Ammbradu Goliath gets -4/-4 for each card in your hand.

Choose one —
• Target opponent discards a card.
• Amosis Charm deals 1 damage to any target and you gain 1 life.

When Ancestor's Skull enters, target creature gets +1/+0 and gains menace until end of turn.
{2}, Sacrifice Ancestor's Skull: Target creature gets +2/+0 and gains menace until end of turn.

Scry 3. (To scry 3, look at the top three cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

Equipped creature gets +1/+1.
Equip {1}

At the beginning of your upkeep, you gain 1 life.
{5}{W}{W}, Sacrifice Ancient Counsel: Create a 6/6 green and white Elk creature token. Activate only as a sorcery.

When Ancient Tablet enters, scry 2.
{2}, Sacrifice Ancient Tablet: You may shuffle any number of target cards from your graveyard into your library. Draw a card.

Angelfire deals X damage to up to one target.
If only {R} was spent to cast this spell and X is 5 or more, Angelfire deals X damage to each opponent and each creature and planeswalker your opponents control instead.

Annihilation deals X damage to any target.

Flash
Flying
At the beginning of each end step, if two or more spells were cast this turn, you may draw a card. If you do, discard a card.

Equipped creature gets +1/+0 and has “{T}: This creature deals 1 damage to target player or planeswalker.”
Equip {2}

If this spell was foretold, target player creates a 4/4 red Dragon creature token with flying. Apex's Prey deals damage equal to the greatest power among creatures you control to up to one target creature or planeswalker.
Foretell {1}{R}{R}{G} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)