msem-instigator

Vigilance
Mountaincycling {1}, plainscycling {1} ({1}, Discard this card: Search your libary for a Mountain or Plains card, reveal it, put it into your hand, then shuffle.)

Neblus' Legacy enters tapped.
When Neblus' Legacy enters, you may mill two cards.
{T}: Add {G} or {U}.

As Nebula of Empty Gold enters, choose two or three colors. You lose life equal to the number of colors chosen this way.
{T}: Add one mana of any of the chosen colors.

Neckbreaker Viking gets +1/+0 and has menace as long as it's embattled. (A creature is embattled if it has a counter on it or has a permanent you control attached to it.)

Deathtouch
When Necrodromos enters, put a +1/+1 counter on target creature.

At the beginning of each end step, if a creature an opponent controlled died this turn, return a creature card from your graveyard to the battlefield.

Enchant creature
Enchanted creature gets +1/+1.
When enchanted creature dies, you may exile it. If you do, return target creature card from your graveyard to the battlefield.

{3}{U}: Draw a card.
{2}{R}: Necropolis Battlemage deals 1 damage to target player. Scry 1.

Equipped creature has all activated abilities of all creature cards in your graveyard.
Equip {3}

Flying
Nectarkin enters with a +1/+1 counter on it.
Whenever Nectarkin deals combat damage to a player, permutate. (You may remove a counter from a creature you control. If you do, put two +1/+1 counters on a different creature you control.)

Equipped creature gets +0/+2.
Whenever equipped creature blocks, you may pay {B}. If you do, target player loses 1 life.
Equip {2}

Flying
{1}{U}, Exile an instant card from your graveyard: Draw a card.
{1}{B}, Exile a creature card from your graveyard: Target creature gets -3/-3 until end of turn.
{1}{R}, Exile a sorcery card from your graveyard: Nefarox, Strifelord deals 3 damage to each opponent.

[+1]: Target opponent reveals their hand. Exile a nonland card from it. For as long as it remains exiled, its controller may cast that card, and it costs {2} more to cast.
[–2]: Exile target creature or planeswalker with mana value 3 or less.
[–8]: Search target opponent's library for up to twenty cards and exile them. Then that player shuffles.

Deathtouch
When Nel Toth Shaman enters, mill two cards.

{1}{B}, Sacrifice another creature: Put a +1/+1 counter on Nemesis Eidolon. Draw a card. Activate only as a sorcery.

When Neo-Alchemist enters, you may reappropriate. If you do, distribute two +1/+1 counters among creatures you control. Otherwise, put a +1/+1 counter on up to one target creature you control. (To reappropriate, exile exactly two cards from your hand and/or graveyard.)

Flash
Enchant creature
Whenever enchanted creature deals combat damage, put that many +1/+1 counters on it.
When enchanted creature leaves the battlefield, distribute X +1/+1 counters among any number of target creatures you control, where X is the number of +1/+1 counters it had on it.

Whenever Neo-Soul Attendant or another enchantment you control enters, you gain 1 life.

Whenever you gain life, put a +1/+1 counter on Neo-Soul Envoy.

When Neo-Soul Naturalist enters, exile up to one target artifact or enchantment. Its controller conjures a card named Data-Point into their hand. (It's a sorcery that costs {2} with “Draw a card.”)

Neo-Soul Nihilist has lifelink as long as it's attacking.
When Neo-Soul Nihilist is put into your graveyard from anywhere, you may pay 2 life. If you do, conjure a card named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)

Whenever another enchantment you control enters, put a +1/+1 counter on Neo-Soul Prophet and conjure a card named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)

Neon Claw Assassin gets +1/+0 and has first strike as long as you've discarded a card this turn.

Whenever you discard a card, tap up to one target creature.