msem-instigator

Moranai Survivalist enters the battlefield with three +1/+1 counters on it if you didn't cast it from your hand.
Revive {3}{G}{G} ({3}{G}{G}, Exile this card from your graveyard: Create a token that's a copy of it except it has no mana cost. Revive only as a sorcery.)

Whenever you activate an ability of a creature that isn't a mana ability, Moranai Tracker gets +1/+1 until end of turn.

{T}: Add {C}.
{1}, {T}, Sacrifice Morphic Verge: Choose two different basic land types. Create a colorless land token that's the chosen types.

Mortal Tapestry gets +1/+1 for each land card in your graveyard.
Revive {4}{G} ({4}{G}, Exile this card from your graveyard: Create a token that's a copy of it except it has no mana cost. Revive only as a sorcery.)

When target creature you control dies this turn, create a token that's a copy of it, except it has no mana cost.

Flying
{1}{W/U}{W/U}: Creatures you control gain flying until end of turn if another creature you control has flying. The same is true for first strike, double strike, deathtouch, haste, indestructible, lifelink, menace, reach, trample, and vigilance.

Whenever another nontoken creature enters the battlefield under your control, you may exile a number of cards from your graveyard equal to its mana value. If you do, create a token that's a copy of it, except the token isn't legendary if the creature is legendary.
{1}{B/G}: Look at the top card of your library. You may put that card into your graveyard.

Sacrifice another colorless creature: Put a +1/+1 counter on target creature.

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

As Mysterious Cataract enters the battlefield, you may pay 2 life. If you don't, Mysterious Cataract enters the battlefield tapped.
{T}, Sacrifice Mysterious Cataract: Search your library for a Forest or Island card, put it onto the battlefield, then shuffle.

{X}, Exile Mysterious Coffer: Return all nonland permanents with mana value X or less to their owner's hands.

Search your library for up to two cards with different names and reveal them. Target opponent chooses one of those cards. Put the chosen card into your graveyard and the rest into your hand. Then shuffle.

{T}: Add one mana of any color. If that mana is spent on a legendary creature spell, it enters the battlefield with an additional +1/+1 counter on it.

{T}: Add {C}.
{3}, {T}, Sacrifice Mystical Tomb: Return target artifact, enchantment, or legendary card from your graveyard to your hand.

Creatures your opponents control get -1/-1 until end of turn. You gain 2 life.

{T}: Add {C}.
Wanderlust — {6}, {T}: Draw two cards. Activate only if you control four or more differently named lands.

{U/B}{U/B}: Return Nherix, the Soulcage from your graveyard to the battlefield tapped.
{6}: Return target creature card with mana value 2 or less from your graveyard to the battlefield tapped.

When Nidohagane Warfans enters the battlefield, if it's not a token, create a token that's a copy of it.
Equipped creature gets +1/+0.
Equip {1}

This spell costs {2} less to cast if an opponent lost life this turn.
Destroy target creature.

Deception {1}{B} ({1}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever Nightfall Infiltrator deals combat damage to a player, that player discards a card.

Whenever you cast a spell, Nightfire Adept gets +3/+0 until end of turn if that spell has the same name as a card in your graveyard.

At the beginning of your upkeep, if Nightmare Riders is in your graveyard, you may mill two cards.

Create a token that's a copy of target creature card in your graveyard, except it has no mana cost.

Reach, deathtouch
When Nightshade Ambusher enters the battlefield, you may pay {1}{G}. When you do, destroy target creature with flying.