msem-instigator

Alpha (You may have this creature enter with a +1/+1 counter on it. If you do, it becomes alpha and can only attack alone.)
Hexproof

At the beginning of your end step, any number of target players mill three cards.
{5}{U/B}, {T}: You may cast target instant or sorcery card from an opponent's graveyard without paying its mana cost. Activate only as a sorcery.

Enchant land
Enchanted land has “{T}: Put a +1/+1 counter on target creature you control. Activate only as a sorcery.”

Lush Outcrop enters tapped unless another player controls a land that could produce {R} or {G}.
{T}: Add {R} or {G}.

When Lust for Life enters, search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
Augmented — Whenever a creature you control enters, if you've spent {W}{U}{B}{R}{G} to cast spells this turn, you may sacrifice Lust for Life. If you do, create a token that's a copy of that creature.

When Lustrebloom Diviner enters, create a Treasure token.
At the beginning of each end step, if you spent three or more colors of mana to cast spells this turn, you gain 3 life. If you spent {W}{U}{B}{R}{G}, draw a card.

Attacking Pirates and Rogues you control get +1/+0.
{2}{U}: Tap target creature an opponent controls.

Create a tapped Treasure token.
Memento {2}{B}{B} (You may cast this from your graveyard for {2}{B}{B}. If you do, put it onto the battlefield transformed after it resolves. Exile it if it would leave the battlefield or not resolve.)

Macabre Effigy enters with three charge counters on it.
{3}, {T}, Remove a charge counter from Macabre Effigy: Create a 2/2 black Zombie creature token. Activate only as a sorcery.

Disgraced 2 (This enters with two -1/-1 counters. Whenever it deals combat damage to a player, remove all -1/-1 counters from it.)
Whenever Madame Deficit attacks, you may tap target creature.

As an additional cost to cast this spell, discard a card or pay {2}.

Menace (This creature can't be blocked except by two or more creatures.)
Whenever Maddened Elk attacks, it gets +1/+1 until end of turn for each other attacking creature you control.

Haste
When Maddened Inferno leaves the battlefield, discard a card, then draw two cards.
Evoke {1}{R} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

Flying
{1}{W}: Target creature with a +1/+1 counter on it gains flying until end of turn.

Whenever you cycle a card, scry 1. (Do this before you draw.)
{W}{U}{B}{R}{G}, Sacrifice Maelstromancy: Return up to three target cards with cycling abilities from your graveyard to your hand.

Search your library for a cryptic card, reveal it, put it into your hand, then shuffle. (Artifacts, enchantments, and modal spells are cryptic.)

Choose two —
• Target player creates a 1/1 blue Wizard creature token with prowess.
• Target player draws two cards, then discards two cards.
• Tap up to two target creatures.
• Target creature or player gains hexproof until end of turn.

Equipped creature gets +2/+1 and has flying.
Equip Wizard or Shaman {2}
Equip {4}

Equipped creature can't be blocked and has ward {3}.
Equip {2}

Whenever a creature dies, scry 1 and each opponent loses 1 life.

Trample
When Magmatic Ravager enters, two target lands you control don't untap during your next untap step.

Haste
When Magmatic Violator enters, target opponent sacrifices a creature.
At the beginning of the end step, sacrifice Magmatic Violator.

Prowess
When Magus Aspirant enters, you may search your library for an instant or sorcery card, reveal it, put it into your hand, then shuffle.

At the beginning of your upkeep, if five or more instant and/or sorcery cards are in your graveyard, return target instant or sorcery card at random from your graveyard to your hand.

Whenever Mahara Vanguard attacks, Soldiers you control get +1/+0 and gain menace until end of turn.