Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

At the beginning of your upkeep, you may move a +1/+1 counter from target creature onto Arcbound Fiend.

Modular 3 (This creature enters with three +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Flying

Your opponents can't gain life.

At the beginning of each end step, each opponent loses life equal to the life that player lost this turn. (Damage causes loss of life.)

Flying

When Archfiend of Sorrows enters, creatures your opponents control get -2/-2 until end of turn.

Unearth (: Return this card 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. Unearth only as a sorcery.)

Flying

Archfiend of the Dross enters with four oil counters on it.

At the beginning of your upkeep, remove an oil counter from Archfiend of the Dross. Then if it has no oil counters on it, you lose the game.

Whenever a creature an opponent controls dies, its controller loses 2 life.

Binding Contract — If you would draw a card, exile the top card of your library face down instead.

: Draw seven cards.

: Return all cards exiled with Asmodeus the Archfiend to their owner's hand and you lose that much life.

When Bogardan Firefiend dies, it deals 2 damage to target creature.

Haste

Daring Fiendbonder attacks each combat if able.

, Exile Daring Fiendbonder from your graveyard: Put an indestructible counter on target creature. Activate only as a sorcery.

This creature gets +1/+1 for each creature card in your graveyard.

, , Sacrifice another creature: Search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle. Activate only as a sorcery.

When Fiend Hunter enters, you may exile another target creature.

When Fiend Hunter leaves the battlefield, return the exiled card to the battlefield under its owner's control.

First strike (This creature deals combat damage before creatures without first strike.)

If a source would deal damage to an opponent, it deals double that damage to that player instead.

Equipped creature gets +2/+0 and has reach.

Whenever equipped creature is dealt damage, it deals damage equal to its power to target player or planeswalker.

Equip

Haste (This creature can attack and as soon as it comes under your control.)

Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.)

When Gibbering Fiend enters, it deals 1 damage to each opponent.

Delirium — At the beginning of each opponent's upkeep, if there are four or more card types among cards in your graveyard, Gibbering Fiend deals 1 damage to that player.

Haste

Goblin Fire Fiend must be blocked if able.

: Goblin Fire Fiend gets +1/+0 until end of turn.

: Target creature attacks this turn if able.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

, Sacrifice another creature: Put a +1/+1 counter on Hobblefiend.

Whenever you cast an instant or sorcery spell, Kiln Fiend gets +3/+0 until end of turn.

Menace

At the beginning of your end step, put a bounty counter on target creature an opponent controls. For as long as that creature has a bounty counter on it, it has "When this creature dies, each opponent draws a card and gains 2 life."

Flying

Other green creatures you control get +1/+1.

Other blue creatures you control get +1/+1.

Untap all green and/or blue creatures you control during each other player's untap step.

Delve (Each card you exile from your graveyard while casting this spell pays for .)

Flying

, , Exile X cards from your graveyard: Target creature gets -X/-X until end of turn.

Whenever Plague Fiend deals combat damage to a creature, destroy that creature unless its controller pays .

When Rathi Fiend enters, each player loses 3 life.

, : Search your library for a Mercenary permanent card with mana value 3 or less, put it onto the battlefield, then shuffle.

Slag Fiend's power and toughness are each equal to the number of artifact cards in all graveyards.

When Spark Fiend enters, roll two six-sided dice. If you rolled 2, 3, or 12, sacrifice Spark Fiend. If you rolled 7 or 11, don't roll dice for Spark Fiend during any of your following upkeeps. If you rolled any other total, note that total.

At the beginning of your upkeep, roll two six-sided dice. If you rolled 7, sacrifice Spark Fiend. If you roll the noted total, don't roll dice for Spark Fiend during any of your following upkeeps. Otherwise, do nothing.

Devour 2 (As this enters, you may sacrifice any number of creatures. This creature enters with twice that many +1/+1 counters on it.)

When Tar Fiend enters, target player discards a card for each creature it devoured.

+1: Draw a card, then discard a card at random.

−4: Tibalt, the Fiend-Blooded deals damage equal to the number of cards in target player's hand to that player.

−6: Gain control of all creatures until end of turn. Untap them. They gain haste until end of turn.

, Sacrifice Torch Fiend: Destroy target artifact.