Champions

Some monsters can spawn as a **Champion** which deviates in coloration and size. The champion's coloration/size denotes which peculiar behaviors and traits it will exhibit. Champions will generally drop a pickup (coinciding with the color of the champion) when killed on normal difficulty. However, in hard mode, the drop rate is reduced to 33%, while in Greed Mode, champions won't drop pickups at all.

Most champions have a visual 15% size increase, inflict full heart damage regardless of chapter, and have double the health of a normal monster. Champions are generally regarded as more dangerous than common monsters.

 Champions always deal contact damage, regardless of what monster they are (e.g. a common Mulligan will not deal contact damage, but champion versions will).

The identifying scheme for champion qualities is as follows:

The chances for Champion monsters to appear are noted in the table below:

* adds 15% to the base champion chance. This has no effect in The Void.
* doubles the champion chance, and stacks with Champion's Belt.
	+ Each copy of Purple Heart adds 2 to the multiplier (e.g. 6x with 3 Purple Hearts, 20x with 10 Purple Hearts).  and  Golden  count as 1 extra copy.
		- Holding multiple Purple Hearts doesn't increase champion chance. Only Mom's Box increases Purple Heart's multiplier.

### Champion Enemies

* Adult Leech
* Angelic Baby
* Baby
* Baby Begotten
* Baby Long Legs
* Big Bony
* Black Bony
* Black Globin
* Black Globin's Body
* Black Globin's Head
* Black Goat
* Black Knight
* Black Maw
* Blaster
* Blind Creep
* Blister
* Bloaty
* Blood Cultist
* Bloodshot Eye
* Blubber
* Blue Boil
* Blue Conjoined Fatty
* Blue Gaper
* Blurb
* Boil
* Bombgagger
* Bone Fly
* Bone Knight
* Bony
* Boom Fly
* Bouncer
* Brain
* Bubbles
* Butt Slicker
* Camillo Jr.
* Candler
* Carrion Princess
* Charger
* Chubber
* Clickety Clack
* Cloggy
* Clot
* Clotty
* Coal Boy
* Cod Worm
* Cohort
* Conjoined Fatty
* Conjoined Spitty
* Crackle
* Crazy Long Legs
* Crispy
* Cultist
* Cursed Globin
* Cyclopia
* Cyst
* Dank Charger
* Dank Globin
* Danny
* Dead Meat
* Deep Gaper
* Dople
* Double Vis
* Dragon Fly
* Dragon Fly X
* Drowned Boom Fly
* Drowned Charger
* Drowned Hive
* Dukie
* Dump
* Dump Head
* Dust
* Eggy
* Evil Twin
* Evis
* Eye
* Faceless
* Fat Bat
* Fat Sack
* Fatty
* Fire Worm
* Fistuloid
* Flagellant
* Flaming Fatty
* Flaming Gaper
* Flaming Hopper
* Flesh Maiden
* Flesh Mobile Host
* Floast
* Floating Knight
* Fly Bomb
* Fly Trap
* Fred
* Frowning Gaper
* Full Fly
* Gaper
* Gas Dwarf
* Gasbag
* Gazing Globin
* Globin
* Goat
* Greed Gaper
* Grilled Clotty
* Grilled Gyro
* Gurgle
* Gurgling
* Gush
* Gusher
* Gut
* Guts
* Gutted Fatty
* Gyro
* Half Sack
* Hanger
* Hard Host
* Hardy
* Hive
* Holy Bony
* Holy Eye
* Holy Leech
* Holy Mulligan
* Hopper
* Horf
* Host
* I.Blob
* Imp
* Ink
* Kamikaze Leech
* Keeper
* Kineti
* Knight
* Leaper
* Leech
* Leper
* Level 2 Charger
* Level 2 Fly
* Level 2 Gaper
* Level 2 Gusher
* Level 2 Horf
* Level 2 Spider
* Lil' Haunt
* Loose Knight
* Lump
* Maggot
* Mama Fly
* Mama Guts
* Maw
* Maze Roamer
* Meatball
* Mega Clotty
* MemBrain
* Migraine
* Ministro
* Mobile Host
* Mole
* Morningstar
* Mulliboom
* Mulligan
* Mullighoul
* Mulligoon
* Mushroom
* Necro
* Nest
* Night Crawler
* Nulls
* One Tooth
* Oob
* Pacer
* Pale Fatty
* Para-Bite
* Peeping Fatty
* Planetoid
* Poison Mind
* Polty
* Pon
* Pooter
* Poot Mine
* Prey
* Psychic Horf
* Psychic Maw
* Psy Tumor
* Pustule
* Quad Revenant
* Quakey
* Rage Creep
* Ragling
* Red Boom Fly
* Red Host
* Red Maw
* Revenant
* Rotten Gaper
* Rotty
* Round Worm
* Roundy
* Sack
* Scarred Double Vis
* Scarred Guts
* Scarred Para-Bite
* Selfless Knight
* Sick Boom Fly
* Skinny
* Slog
* Small Baby Long Legs
* Small Crazy Long Legs
* Snapper
* Soul Sucker
* Spit
* Spitty
* Splasher
* Sticky Leaper
* Sub Horf
* Sucker
* Super Pooter
* Swarmer
* Tar Boy
* The Thing
* Ticking Spider
* Trite
* Tube Worm
* Tumor
* Twitchy
* Ulcer
* Unborn
* Vis
* Vis Fatty
* Vis Versa
* Walking Boil
* Walking Gut
* Walking Sack
* Wall Creep
* Whipper
* Wraith
* Wrinkly Baby

* The  Angelic Baby (small),  Eternal Fly Bombs, the bones thrown by a  Big Bony,  Festering Guts,  Exorcists,  Fanatics,  Fetal Demons, and the shadow Chargers spawned by  are flagged to be able to spawn as Champions, but this is impossible to see without mods, as they aren't placed in any room layouts normally.

* Army Fly
* Attack Fly
* Begotten
* Big Corn
* Big Spider
* Bishop
* Bloodfly
* Brainless Knight
* Brimstone Death's Head
* Brownie Corn
* Bulb
* Buttlicker
* Coal Spider
* Corn
* Cross Stoney
* Cursed Death's Head
* Dank Death's Head
* Dank Squirt
* Dart Fly
* Dead Isaac
* Death's Head
* Dinga
* Dip
* Drip
* Dusty Death's Head
* Elleech
* Embryo
* Eternal Fly
* Fissure
* Flesh Death's Head
* Fly
* Grub
* Henry
* Homunculus
* Hush Fly
* Level 2 Willo
* Lil Portal
* Mask + Heart
* Mask II + 1/2 Heart
* Mom's Dead Hand
* Mom's Hand
* Moter
* Mr. Maw
* Mr. Mine
* Mr. Red Maw
* Needle
* Nerve Ending
* Nerve Ending 2
* Pasty
* Poofer
* Portal
* Red Ghost
* Redskull
* Ring Fly
* Rock Spider
* Shady
* Small Leech
* Small Maggot
* Soy Creep
* Spider
* Splurt
* Squirt
* Stoney
* Strider
* Swarm
* Swarm Spider
* Swinger
* Tainted Boom Fly
* Tainted Faceless
* Tainted Hopper
* Tainted Mole
* Tainted Mulligan
* Tainted Pooter
* Tainted Round Worm
* Tainted Soy Creep
* Tainted Spitty
* Tainted Sub Horf
* Tainted Sucker
* Tainted Tube Worm
* Tinted Rock Spider
* Willo
* Wizoob

### Notes

* Pulsing vivid red champions seem to be much more common.
* Camouflage champions will drop a random card if runes/soul stones haven't been unlocked.

* Concept art for the champion versions of the Nest.