msem-instigator

Trample
Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)

When Mukal Reaper enters, you draw a card and you lose 2 life.
Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)

When Mukal Swarmhorde enters, put a +1/+1 counter on each other Construct you control.
Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)

Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)
Whenever Mukal Warleader attacks, the next Construct spell you cast this turn costs {1} less to cast.

[+1]: Up to one target creature gets +2/+0 until end of turn. Each player loses 1 life.
[–X]: Return target creature card with mana value X from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield.
[–7]: For each 1 life target player has less than their starting life total, create a 1/1 black Bird creature token with flying and deathtouch.

Whenever you cast a creature spell, create a 2/1 white Sand creature token with flying.
Whenever you cast an instant or sorcery spell, create a 3/1 red Sand creature token with haste.
Whenever you cast an enchantment or artifact spell, create a 2/2 blue Sand creature token with hexproof.
Whenever a land you control enters, create a 3/3 green Sand creature token.

When Mul Daya Elder enters, search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
Whenever a land you control enters, put a +1/+1 counter on Mul Daya Elder.

Exile a nonland card from your graveyard: For each colored mana symbol in that card's mana cost, add one mana of that color. Activate only once each turn. (For example, if the card's mana cost is {3}{G}{G}{W}, you add {G}{G}{W}.)

When Mulchborn Behemoth enters, you may sacrifice any number of lands.
Mulchborn Behemoth gets +1/+1 for each land card in your graveyard.
{B}{G}, Sacrifice a land: Destroy target creature or land.

Look at the top three cards of your library, then put them into your graveyard or back on top of your library in any order.
Draw two cards.

Whenever a nontoken creature you control enters, if it shares no creature types with other creatures you control, draw a card.

Destroy target creature.

Whenever a creature with flying attacks you, gain control of that creature at end of combat.

Destroy target creature an opponent controls, then that player sacrifices a creature.

Whenever Murkriver Trawler attacks, until end of turn, target Rogue gains “Whenever this creature deals combat damage to a player, draw a card.”

Trample
Whenever Muse of Summer Revelry enters or you cast a spell with power 4 or greater, choose one —
• You gain 3 life.
• Create a 2/2 green Wolf creature token.
• Draw a card.

Draw two cards.
Crystallize. (Put a +1/+1 counter on a creature you control or create a Treasure.)

Untap all creatures that attacked this turn. After this main phase, there is an additional combat phase followed by an additional main phase. For each planeswalker you control, you may activate its loyalty abilities an additional time this turn.

At the beginning of your upkeep, germinate. Then if creatures you control have total power 10 or greater, transform Mushroom Merchant. (To germinate, put a +1/+1 counter on a creature or create a 1/1 green Saproling creature token.)

Create two 1/1 white Soldier creature tokens. Prevent all damage that would be dealt to them this turn.

You may have Mutalithic Golem enter as a copy of any land on the battlefield, except it's an artifact in addition to its other types.

Whenever a creature you control dies, destroy target creature you don't control.

Menace
Other attacking Hounds you control get +2/+0.

Reveal cards from the top of your library until you reveal a creature card and a land card. Put those cards into your hand and the rest on the bottom of your library in a random order.
Concord — If there are four or more card types among permanents you control, create two Treasure tokens.

Equipped creature gets +2/+2.
Concord — Whenever equipped creature attacks, if there are four or more card types among permanents you control, create a 3/3 red Shark enchantment creature token that's tapped and attacking. Exile that token at the beginning of the next end step.
Equip {1}