msem-instigator

Draw a card.
Showcase {3}{U} (Then if you cast this for its showcase cost, create a 1/1 red Bard creature token that can't block and exile this. Whenever it attacks, you may cast a free copy of this.)

Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)
When Aith Aera Sentinel enters the battlefield, create a 1/1 green Elf creature token.

Whenever a creature token enters the battlefield under your control, put a +1/+1 counter on target creature you control.

Vigilance
{1}{G}: Ajani's Advocate gets +2/+2 until end of turn. Activate only once each turn.

Haste
Spirited (When this creature enters the battlefield, you may activate one of its activated abilities without paying its cost.)
{1}{R}: Akaima Rager gets +1/+0 until end of turn.

Akimbo Slash deals 1 damage to each of up to two target creatures.
Ferocious — Those creatures can't block this turn if you control a creature with power 4 or greater.

Aurashaper and Aura spells you cast cost {1} less to cast.

Trample
Wanderlust — Whenever Akkrixian Assailants attacks, if you control four or more differently named lands, put a +1/+1 counter on it.

Haste
{R}: Akoum Rockhurler gets +1/+0 until end of turn.
Whenever Akoum Rockhurler attacks, you may sacrifice a land. If you do, put two +1/+1 counters on Akoum Rockhurler.

Vigilance
When Akrasan Sentry enters the battlefield, untap target creature.

Haste
Heroic — Whenever you cast a spell that targets Akroan Siege Captain, put a +1/+1 counter on each creature you control.

Akroan Truespear has first strike as long as it's attacking.
Heroic — Whenever you cast a spell that targets Akroan Truespear, put a +1/+1 counter on Akroan Truespear.

When Alaina enters the battlefield, each opponent loses X life and you gain X life, where X is the number of Clerics you control.
{W}{B}, Pay 2 life: Return Alaina from your graveyard to your hand. Activate only if you have more life than your starting life total.

Flying
Whenever Albino Drake deals combat damage to an opponent, create an Idol token. (It's an artifact with “{1}, Sacrifice this artifact: Put a +1/+1 counter on target creature. Activate only as a sorcery.”)

Untap target creature. It gets +1/+1 for each token you control until end of turn.

Choose one—
• Target creature gets -3/-3 until end of turn.
• All creatures get -1/-1 until end of turn.

{T}: Add {C}.
Tap three differently named untapped Academies you control: Put a +1/+1 counter on target permanent. Activate only as a sorcery.

You have no maximum hand size.
{T}: Add {C}.
{3}, {T}: Create a Vial token. (It's an artifact with “{1}, Sacrifice this and another permanent: Draw a card. Activate only during your turn.”)

{T}: Add {C}.
{T}, Sacrifice Alchemist's Abode and another permanent: Draw a card. Activate only during your turn.

When Alchemist's Kit enters the battlefield, you may return target creature to its owner's hand.
2U, Sacrifice Alchemist's Kit: Draw a card.

{T}, Pay 1 life: Add {G} or {U}.
{2}, {T}, Sacrifice Alchemist's Laboratory and another permanent: Draw a card. Activate only during your turn.

When Alder Courtier dies, you gain 4 life.

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

Other Goblins you control get +1/+0 and have menace.

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