Azazel

Azazel is a character unlocked by making three deals with the Devil in one run. Azazel starts with a short-ranged version of which deals damage  13 times in one second  8 times in one second, the ability to fly, the card, and three Black Hearts without any regular Red Heart containers; however, unlike  and /, Azazel can still obtain Red Heart containers with items.

Item Interactions

 * : Azazel's Brimstone beam doubles in width, like . No effect on damage.

Good Items

 * doubles lasers without increasing tear delay.
 * Aside from the lack of Angel Rooms, it provides no downside, given Azazel still has no Red Heart containers. As it costs 3 Soul Hearts, it will add 3 Black Hearts to his health bar, increase damage and speed, and give his Brimstone laser a fear effect.
 * This is no longer the case, as the amount of black hearts given by Abaddon is now based on the amount of red hearts it removes.
 * gives Azazel the long-range version.
 * reduces charge time.
 * His Brimstone laser takes longer to be fully charged but can be released anytime. Width and damage of the laser increases at higher charges. Width scales from 50% at minimum charge to 160% at maximum charge. Damage scales from 25% at minimum charge to 250% at maximum charge. Unlike with normal tears, the tears stat does not directly affect maximum or minimum damage.
 * The circle is nearly the same size as Azazel's laser, adding extra damage.
 * Hook Worm allows the lasers to deal more damage per tick because of the shape it takes on.
 * / shoots multiple mini Brimstone lasers with increased tear delay.
 * gives a Brimstone ring, whether Azazel has the short or long-ranged version of it, giving him the ability to damage many enemies at a time due to its size and negates Azazel's short-range, but halves Azazel's damage.
 * allows Azazel to shoot two beams, one of which is shot behind him.
 * gives several additional Brimstone beams around Azazel.
 * greatly increases the range of Azazel's brimstone.
 * Greatly increases the Brimstone laser's range and makes the laser curve as Azazel moves around the room.
 * Greatly increases the Brimstone laser's range and makes the laser double back on itself to land behind Azazel.
 * slightly decreases Azazel's range but significantly decreases the charge time of Azazel's Brimstone. It also turns Azazel's laser yellow.
 * doubles the Brimstone laser's damage without any downsides.
 * The beam will decrease in damage the further it travels, but Proptosis still greatly increases damage at close range.
 * allows Azazel's laser to bounce off of walls. Unlike Azazel's normal mini-Brimstone, beams that bounce off of walls have infinite range but deals half of the damage.
 * The beam will no longer turn into normal Brimstone upon bouncing off a wall. It will instead turn into his mini-Brimstone.
 * shoots 10 short-ranged Brimstone beams around the explosion point, which deals enormous amounts of damage.
 * shoots 10 short-ranged Brimstone beams around him, which deal enormous amounts of damage.
 * Tape Worm greatly increases the Brimstone laser's range.
 * along with a physical change in the Brimstone, damage is increased.
 * provides a laser while Brimstone is charging, allowing the player to do damage while the charge occurs. However, this also decreases the damage of Azazel's Brimstone.
 * changes the path of Azazel's Brimstone into a circle, giving it an area of effect. The range increase becomes especially powerful if you add a homing tears effect.
 * Adds a scatter of blood tears from Azazel's Brimstone's landing point.
 * : Azazel's Brimstone is auto-fired in the direction of a controllable target. Press Fire to start and Drop to stop.
 * : Azazel's Brimstone becomes a lasso, auto-fired at a controllable target. Press Fire to start and Drop to stop.
 * The range of Azazel's short Brimstone is increased and wraps around the screen, though without other significant range boosts it doesn't wrap far enough reach into the room.

Bad Items

 * has no effect.
 * adds poison effect to the beam and fires an explosive tear, but since tear delay increases, it will make a run with Azazel much harder..
 * The tear delay remains unchanged, and the end of the beam is explosive. No tear is fired.
 * while useful in some situations, enemies such as The Thing or other Creeps will be dangerous.
 * The following items have their effect reduced or nullified with Azazel's short-ranged Brimstone.
 * Items naturally overridden by Brimstone, such as:
 * (Range of Azazel's short Brimstone is significantly reduced).
 * (Azazel starts with flight)
 * ( Creep will spawn at the edge of the laser)
 * Pulse Worm
 * (Azazel starts with flight)
 * (Until is picked up)
 * has no effect with Azazel's short Brimstone.
 * The range of Azazel's short Brimstone is increased and wraps around the screen, though without other significant range boosts it doesn't wrap far enough to be reach into the room.
 * only reduces Azazel's speed and short Brimstone's range.
 * overridden by Azazel's short Brimstone.
 * Brimstone's beam cannot be directed, but it does increase Brimstone's charge speed.
 * The beam can now be directed.
 * Jacob's Ladder has no effect; sparks do not fly from Azazel's Brimstone when it connects with enemies.
 * Sparks appear where the brimstone ends.
 * The following items override Azazel's short-ranged Brimstone:
 * Items that respawn Azazel as a different character, including, , and
 * Items that break Rocks, like or  nullify part of the advantage Azazel gains from flight as he will no longer be able to hover over them to avoid enemy projectiles.
 * Brimstone's beam cannot be directed, but it does increase Brimstone's charge speed.
 * The beam can now be directed.
 * Jacob's Ladder has no effect; sparks do not fly from Azazel's Brimstone when it connects with enemies.
 * Sparks appear where the brimstone ends.
 * The following items override Azazel's short-ranged Brimstone:
 * Items that respawn Azazel as a different character, including, , and
 * Items that break Rocks, like or  nullify part of the advantage Azazel gains from flight as he will no longer be able to hover over them to avoid enemy projectiles.
 * Items that respawn Azazel as a different character, including, , and
 * Items that break Rocks, like or  nullify part of the advantage Azazel gains from flight as he will no longer be able to hover over them to avoid enemy projectiles.
 * Items that respawn Azazel as a different character, including, , and
 * Items that break Rocks, like or  nullify part of the advantage Azazel gains from flight as he will no longer be able to hover over them to avoid enemy projectiles.
 * Items that respawn Azazel as a different character, including, , and
 * Items that break Rocks, like or  nullify part of the advantage Azazel gains from flight as he will no longer be able to hover over them to avoid enemy projectiles.

Trivia

 * In the Bible, Azazel is the name given to the goat that was cast into the wild as part of Jewish atonement rituals. However, in certain traditions of Abrahamic religions, Azazel refers to the fallen angel who taught people to make weapons and jewelry and taught women the "sinful art" of painting their faces, as mentioned in the apocryphal Book of Enoch. Azazel is referenced three times in the Bible; this may be why he spawns with three Black Hearts.
 * Azazel's starting health is listed as "-1" on the character selection screen.