Target player mills two cards. You draw a card and you lose 1 life. Leitmotif (If you cast this spell from your hand, exile it as it resolves. When you next cast a spell that shares a color with this card, you may cast this from exile without paying its mana cost.)
Sacrifice two other creatures: Monstrosity 2. (If this creature isn't monstrous, put two +1/+1 counters on it and it becomes monstrous.) When Flailing Terror becomes monstrous, target opponent sacrifices two creatures.
{3}{B}: Regenerate Flesh Hoarder Ghoul. (The next time this creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)
Vanishing 1 (This permanent enters with a time counter on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.) When Flesh to Rot enters or the last time counter is removed from it, all creatures get -3/-3 until end of turn.
Fleshcrawler gets +1/+0 for each player that has lost life this turn.
“If you peer past the rot, every crawler wears the face of a soldier who fell to the Nav. Do they mock us, or are they a manifestation of our tragedy?”
Flying (This creature can't be blocked except by creatures with flying or reach.) At the beginning of your upkeep, put a +1/+1 counter on Fleshrender Demon and you lose 1 life.
When Fleshwrithe Ghoul enters, each player sacrifices a creature. Revive {4}{B}({4}{B}, 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.)
Flourishing Swamp enters tapped. As Flourishing Swamp enters, choose a basic land type. Flourishing Swamp is the chosen type in addition to its other types.
At the beginning of your upkeep, if you have more life than an opponent, create a 1/1 black Insect Spirit creature token with flying. {3}{B}: Each opponent loses X life and you gain X life, where X is the number of Clerics you control.
As an additional cost to cast this spell, you may pay {2} and tap an untapped Rogue you control. When you do, copy this spell and you may choose new targets for the copy. Target creature gets -2/-2 until end of turn.
Target opponent loses 2 life. Inscribe {1}{B}({1}{B}: Exile this card from your hand inscribed on a creature you control. Whenever that creature attacks, its controller may cast a copy of the inscribed card without paying its mana cost. Inscribe only as a sorcery.)
When Forbidden Shiangshi Arts enters, each player mills three cards. {2}{B}: Exile target creature card from a graveyard. Create a tapped token that's a copy of that card, except it has “When this creature deals damage, sacrifice it.”