Benighted Keeper is an unlockable character in Benighted Soul, a mod for The Binding of Isaac.

14 Heart Tokens.
Another Karma (Consumable slot)
XX - Judgement (Finishing Generosity Mode required)

Flight.

Coin Heart character.

Double tears (same as 20/20).

Smelts Penny Trinkets.

Penny Trinkets may affect beggar pools.

Except Birthright (shop price is 0), item price x 300%.

Every time when donating to beggar, item price decreases by about 0.4%.

Hearts are free, and will be saved as "Heart Tokens" when picked up, 99 at most.

Costs 2 Heart Tokens for damage form machines or beggars, and all for deadly damage.

Donating to beggars increases the maximum of coin health containers until 7.

(Detail in GuruWiki)

Donate to Donation Machine till 999 and make Greed Donation Machine return to zero.

The following special synergies and interactions for Benighted Keeper have been documented.

* Note that not all possible synergies and interactions are listed here.

Except beggars on ground, give pickups to familiars below also counted as donation:
• Bum Friend
• Dark Bum
• Bumbo
• Key Bum
• Super Bum

Total donation times for MAX HP:
• 2: 28 times.
• 3: 70 times.
• 4: 128 times, with Black Candle (If not held).
• 5: 192 times.
• 6: 262 times.
• 7: 332 times.
( Birthright required for below)
• 8: 402 times.
• 9: 472 times.
• 10: 542 times.
• 11: 612 times.
• 12: 682 times. Hearts are free, and will be saved as "Heart Tokens" when picked up, 99 at most.

Costs 2 Heart Tokens for damage form machines or beggars, and all for deadly damage.

Value:
• Heart: 2
• Heart (half): 1
• Heart (soul): 3
• Heart (eternal): 7
• Heart (double): 4
• Black Heart: 4
• Gold Heart: 7
• Heart (half soul): 2
• Scared Heart: 2
• Blended Heart: 4
• Bone Heart: 6
• Rotten Heart: 2
• Other: 4

Cursed Penny has min(60, 24 × TrinketMultiplier)% change make beggars return resources:
• Beggar / Battery Bum / Rotten Beggar / Bum Friend / Bumbo / Super Bum：1 coin
• Devil Beggar / Key Bum / Super Bum：2 Heart Tokens
• Key Master / Dark Bum / Super Bum：1 key
• Bomb Bum：1 bomb

Penny Trinkets may affect beggar pools: Choose one as result from 28 original pools and inserted pools.

Beggar:
• Swallowed Penny: 10 Treasure Room
• Butt Penny: 10 Boss
• Bloody Penny: 5 Ultra Secret Room; 3 Devil Room
• Burnt Penny: 1 Bomb Bum; 3 Secret Room
• Flat Penny: 1 Key Master; 5 Golden Chest; 1 Old Chest
• Counterfeit Penny: 5 Shop
• Rotten Penny: 1 Rotten Beggar; 2 Red Chest; 2 Curse Room
• Blessed Penny: 7 Angel Room
• Charged Penny: 3 Battery Bum
• Cursed Penny: 6 Devil Room; 3 Red Chest; 3 Curse Room
• Glitched Penny: 10 RANDOM
• Starry Penny: 8 Planetarium
• Paper Penny: 8 Library
• Old Penny: 8 Old Chest

Demon Beggar:
• Bloody Penny: 24 Devil Room
• Counterfeit Penny: 2 Shop
• Cursed Penny: 24 Devil Room; 6 Red Chest
• Glitched Penny: 5 RANDOM

Key Master:
• Bloody Penny: 4 Ultra Secret Room; 6 Devil Room
• Burnt Penny: 5 Secret Room
• Flat Penny: 10 Golden Chest; 3 Old Chest
• Counterfeit Penny: 2 Shop
• Rotten Penny: 4 Red Chest
• Blessed Penny: 4 Angel Room
• Charged Penny: 2 Battery Bum
• Cursed Penny: 4Red Chest
• Glitched Penny: 5 RANDOM
• Starry Penny: 5 Planetarium
• Paper Penny: 3 Library
• Old Penny: 2 Old Chest

Bomb Bum:
• Bloody Penny: 4 Ultra Secret Room; 6 Devil Room
• Burnt Penny: 5 Secret Room
• Flat Penny: 3 Old Chest
• Counterfeit Penny: 2 Shop
• Rotten Penny: 4 Curse Room
• Blessed Penny: 4 Angel Room
• Charged Penny: 2 Battery Bum
• Cursed Penny: 4Curse Room
• Glitched Penny: 5 RANDOM
• Starry Penny: 3 Planetarium
• Paper Penny: 3 Library
• Old Penny: 2 Old Chest

Battery Bum:
• Bloody Penny: 3 Devil Room
• Counterfeit Penny: 2 Shop
• Blessed Penny: 3 Angel Room
• Cursed Penny: 3 Devil Room
• Glitched Penny: 1 RANDOM
• Starry Penny: 2 Planetarium

Rotten Beggar:
• Bloody Penny: 4 Devil Room
• Counterfeit Penny: 1 Shop
• Blessed Penny: 8 Angel Room
• Cursed Penny: 8 Devil Room
• Glitched Penny: 1 RANDOM To unlock below, must play on Hard Mode.

• Heart: Alms
• Isaac: Panacea
• ???: Contact C Maxx C Sneaky C Confronting C Retaliating C
• Satan: Mini Horn
• Lamb: Rich Mines
• Mega Satan: Generous-er Glitched Penny Starry Penny Paper Penny Old Penny
• Boss Rush: Facer Cultist Mask Ssserpent Head Cleric Face Nloths Mask Gremlin Mask
• Hush: Falsehood of the Keeper
• Delirium: Another Karma
• Mother: 018
• Beast: Multiplication
• Greed: Master Pack Multiply Smile World
• FINISHED: Generosity (mini-boss) The description "Generosity is hanging on" means really "hanging on".
(It maybe true for those "Keepers" in reality)

• Download Benighted Soul from the Steam Workshop.