msem-instigator

First strike
Whenever Deprived Div deals combat damage to an opponent, end the turn. (Creatures without first strike won't deal damage this turn.)

Menace
Other artifact creatures you control have menace.
{2}{B}{R}: Salvage an artifact or creature card. (Exile one from your graveyard until this creature leaves the battlefield. Whenever this creature deals combat damage to a player, put a card it salvaged into your hand.)

Descended Fissure enters tapped.
{T}: Add {B} or {R}.
Morph {2} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Dire Dive enters tapped unless another player controls a land that could produce {B} or {R}.
{T}: Add {B} or {R}.

{1}, Sacrifice a creature: Create a Treasure token. Exile the top card of your library. You may play that card this turn.

Flying, first strike, haste
Whenever Doombringer Dragon attacks, you may sacrifice another creature. If you do, Doombringer Dragon gets +3/+0 until end of turn.

Menace, haste
Whenever another creature dies, you get a blood counter.
{B}{R}, Pay two blood counters: Return Dthan, Who Bloodies the Sands from your graveyard to the battlefield.

[+2]: You may discard a card. If you do, draw two cards.
[–3]: Return target creature card from your graveyard to the battlefield. It gains haste. Return it to your hand at the beginning of the next end step.
[–7]: Discard your hand, then draw seven cards. You may put an Edarna planeswalker card from your hand or graveyard onto the battlefield.

Flying, haste
{2}{B}{R}: Return Edarna's Augurling from your graveyard to the battlefield. Return it to your hand at the beginning of the next end step. Activate only as a sorcery.

Destroy target creature.

Erosive Path enters tapped unless you control one or fewer other lands.
{T}: Add {B} or {R}.
Cycling {2} ({2}, Discard this card: Draw a card.)

Erupting Territory enters tapped.
{T}: Add {B} or {R}.
{1}, {T}: Add one mana of any color.

Put a -1/-1 counter on target creature.
Draw a card.

Up to one target creature can't block this turn. (Then exile this card. You may play the land later from exile.)

Lifelink, haste
At the beginning of your end step, Fae-Frill Fox deals X damage to target player, where X is the number of times you gained life this turn.

Whenever Fallacy's Channeler becomes untapped, each player sacrifices a creature.
{T}, Pay 1 life: Fallacy's Channeler deals 1 damage to any target.

When Fang of Andazir enters, each player sacrifices a permanent.
Whenever you sacrifice a creature for the first time each turn, create a 1/1 red Dog creature token.

Faradia's Favored attacks each combat if able.
Whenever you pay a tithe, you may return Faradia's Favored from your graveyard to the battlefield.

Enchant creature
When Feline Furor enters, it deals 2 damage to enchanted creature.
Enchanted creature gets +2/+0 and has menace.

({T}: Add {B} or {R}.)
Fiery Chasm enters tapped.

{T}: Add {B} or {R}. You lose 1 life unless you have less life than an opponent.

As Foreboding Ruins enters, you may reveal a Swamp or Mountain card from your hand. If you don't, Foreboding Ruins enters tapped.
{T}: Add {B} or {R}.

{B}{R}, Sacrifice a creature: Create a token that's a copy of Forlorn Companion, except it has no mana cost.

{1}{B}, {T}, Remove a time counter from a permanent you control: Fretport Anarchists deals 2 damage to any target. You gain 2 life.

At the beginning of each end step, Fretport's Fade deals 2 damage to each player that had one or more cards put into their graveyard this turn.