| Name | Image | Rarity | Type | Cost | Description |
|---|
| Dogma |  | Special | Power | 0 | Gain 4 (6) Block. At the start of your turn, gain 3 (4) Block. |
| Defend |  | Basic | Skill | 1 | Gain 7 (10) Block. |
| Holy Card |  | Basic | Skill | 1 | Ethereal. (not Ethereal.) Gain 1 thelost:Buffer. Exhaust. |
| Mom's Eye |  | Basic | Attack | 1 | Gain 6 (8) Block. Deal 5 (7) damage. |
| Strike |  | Basic | Attack | 1 | Deal 6 (9) damage. |
| Aquarius |  | Common | Skill | 0 | Gain 4 (6) thelost:Tears and 3 (4) thelost:Nebula. |
| Book of Belial |  | Common | Skill | 0 | Gain 3 (5) temporary Strength. |
| Book of Sin |  | Common | Skill | 1 | Gain 1 (2) thelost:Evil. Draw 1 card. |
| Dead Bird |  | Common | Attack | 0 | Dead 5 (8) damage to ALL enemies. |
| Dead Onion |  | Common | Skill | 1 | Gain 6 (9) thelost:Tears. Apply 1 (2) Weak to ALL enemies. |
| Epiphora |  | Common | Skill | 0 | Gain 5 (8) thelost:Tears. |
| Gimpy |  | Common | Skill | 1 | Gain 5 (7) thelost:Tears. Next turn, gain 5 (7) Block. |
| Isaac's Tears |  | Common | Attack | 1 | Gain 6 (8) thelost:Tears. Deal 6 (8) damage. |
| Little Baggy |  | Common | Attack | 1 | Gain 6 (9) thelost:Tears and 1 thelost:Evil. Deal 4 (6) damage. |
| Lost Contact |  | Common | Skill | 1 | Ethereal. Gain 5 (8) thelost:Tears. Gain 1 thelost:Buffer. Exhaust. |
| Mars |  | Common | Attack | 1 | Gain 4 (6) thelost:Nebula. Deal 8 (11) damage. |
| My Shadow |  | Common | Attack | 1 | Gain 2 thelost:Evil. Deal 4 (7) damage to ALL enemies. |
| Pentagram |  | Common | Attack | 1 | Gain 2 (3) thelost:Evil. Deal 8 (11) damage. |
| Prayer Card |  | Common | Skill | 1 | Channel 1 thelost:Purity. Draw 1 (2) card(s). |
| Rosary |  | Common | Attack | 1 | Channel 1 thelost:Purity. Deal 6 (9) damage. |
| Scapular |  | Common | Skill | 1 | Gain 9 (12) Block. Channel 1 thelost:Purity. |
| The Nail |  | Common | Attack | 1 | Gain 2 (3) thelost:Evil. Deal 5 (6) damage and apply 2 (3) Vulnerable. |
| Torn Photo |  | Common | Attack | 1 | Gain 4 (7) thelost:Tears. Deal 4 (5) damage twice. |
| Virgo |  | Common | Skill | 1 | Gain 11 (14) Block and 3 (4) thelost:Nebula. |
| Zodiac |  | Common | Skill | 1 | Channel 1 thelost:Purity. Gain 3 (5) thelost:Nebula. |
| Anima Sola |  | Uncommon | Attack | 2 | Deal 9 (12) damage. Target enemy loses 9 (12) Strength this turn. Exhaust. |
| Astral Projection |  | Uncommon | Skill | 2 | Gain 1 Intangible. Lose 3 (2) Dexterity. Exhaust. |
| Black Candle |  | Uncommon | Attack | 1 | Gain 2 (3) thelost:Evil and 1 Artifact. Deal 5 (8) damage to ALL enemies. Exhaust. |
| Broken Modem |  | Uncommon | Skill | 3 (2) | Gain 1 Intangible and 6 Block. Exhaust. |
| Camo Undies |  | Uncommon | Skill | 2 (1) | Retain. Gain 1 thelost:Buffer. Exhaust. |
| Cancer |  | Uncommon | Skill | 1 | Gain 1 (2) Dexterity and 6 thelost:Nebula. Exhaust. |
| D6 |  | Uncommon | Skill | 1 | thelost:Reroll. Exhaust. (not Exhaust.) |
| Dark Bum |  | Uncommon | Skill | 1 | Exhaust 1 card. Gain 2 (3) thelost:Evil. |
| Death's Touch |  | Uncommon | Attack | 1 | Deal 7 (10) damage and apply 2 Vulnerable to ALL enemies. |
| Deck of Cards |  | Uncommon | Power | 2 | Ethereal. (not Ethereal.) At the start of your turn, draw 1 additional card. |
| Deep Pockets |  | Uncommon | Skill | 1 (0) | Gain [E] [E]. Draw 1 card. Exhaust. |
| Devil Deal |  | Uncommon | Skill | 0 | Gain 4 thelost:Evil. Exhaust. (not Exhaust.) |
| Divorce Papers |  | Uncommon | Skill | 1 | Gain 9 (12) thelost:Tears. Draw 1 (2) card(s). |
| Duality |  | Uncommon | Skill | 1 | Gain 2 (3) thelost:Evil. Channel 1 thelost:Purity. |
| Gemini |  | Uncommon | Power | 1 (0) | After you're attacked, gain 1 thelost:Nebula. |
| Ghost Pepper |  | Uncommon | Attack | 1 | Deal 8 (11) damage. Enemy loses 2 (3) Strength this turn. |
| Gnawed Leaf |  | Uncommon | Skill | 3 (2) | Gain 1 Intangible. Become thelost:Entangled. Exhaust. |
| Holy Light |  | Uncommon | Attack | 2 | Channel 1 thelost:Purity. Gain 10 (13) thelost:Tears. Deal 8 (11) damage. |
| Immaculate Heart |  | Uncommon | Skill | 1 | Channel 1 thelost:Purity. Gain 3 (5) temporary Strength. |
| Jupiter |  | Uncommon | Skill | 2 | Gain 16 (20) Block and 5 (6) thelost:Nebula. Apply 1 Weak to ALL enemies. |
| Luna |  | Uncommon | Power | 1 | If you do not play any Attacks during your turn, gain 3 (4) thelost:Nebula. |
| Mitre |  | Uncommon | Skill | 1 | Draw 1 (2) card(s). Exhaust 1 card. Channel 1 thelost:Purity. |
| Mom's Bra |  | Uncommon | Skill | 1 | ALL enemies lose 2 (3) Strength. Exhaust. |
| Monstrance |  | Uncommon | Skill | 1 | Innate. Channel 1 (2) thelost:Purity. Exhaust. |
| Ouija Board |  | Uncommon | Skill | 0 | Gain 2 thelost:Evil and 5 (8) thelost:Tears. |
| Polyphemus |  | Uncommon | Attack | 2 | Gain 12 (15) thelost:Tears. Deal 15 (18) damage. |
| Purgatory |  | Uncommon | Power | 1 | At the start of your turn, deal 2 (4) damage to ALL enemies. |
| Sacrificial Dagger |  | Uncommon | Attack | 1 | Deal 4 (7) damage. Enemy loses 1 Strength. |
| Sad Onion |  | Uncommon | Power | 1 | At the start of your turn, gain 3 (4) Block. |
| Seraphim |  | Uncommon | Attack | 1 | Ethereal. (not Ethereal.) Deal 5 damage. Draw 1 card for each Orb you have. |
| Sol |  | Uncommon | Skill | 0 | Gain 2 (3) thelost:Nebula and 1 Artifact. Apply 2 (3) Weak. Exhaust. |
| Spirit of the Night |  | Uncommon | Skill | 1 | Gain 2 (3) thelost:Evil and 1 Strength. Exhaust. |
| Star of Bethlehem |  | Uncommon | Power | 1 | Gain 2 (3) Strength and 2 (3) Dexterity. |
| Super Bandage |  | Uncommon | Skill | 2 | Gain 1 thelost:Buffer, 9 (12) Block, and 1 Dexterity. Exhaust. |
| Terra |  | Uncommon | Attack | 1 | Remove the enemy's Block. Deal 7 (10) damage. Gain 3 (5) thelost:Nebula. |
| The Bible |  | Uncommon | Skill | 2 | Ethereal. (not Ethereal.) Gain 3 thelost:Buffer. Lose 2 Dexterity. Exhaust. |
| Trisagion |  | Uncommon | Attack | 1 | Channel 1 thelost:Purity. Deal 5 (8) damage to ALL enemies. |
| Whore of Babylon |  | Uncommon | Attack | 1 | Gain 2 (3) thelost:Evil. Deal 5 (6) damage twice. |
| Abyss |  | Rare | Attack | 2 | Deal 1 damage to ALL enemies 5 (6) times. Exhaust. |
| Blank Card |  | Rare | Skill | 1 | This turn, your next card is played twice. Exhaust. (not Exhaust.) |
| Brimstone |  | Rare | Attack | 2 | Gain 4 thelost:Evil. Deal 15 (20) damage to ALL enemies. |
| Crown of Light |  | Rare | Attack | X | Channel X (X+1) thelost:Purity. Deal 5 damage to ALL enemies X (X+1) times. Exhaust. |
| Glitched Crown |  | Rare | Skill | 1 (0) | Draw cards until your hand is full. Gain [E]. Exhaust. |
| Godhead |  | Rare | Power | 2 (1) | Whenever you play a card, gain 1 thelost:Tears and deal 1 damage to ALL enemies. |
| Holy Water |  | Rare | Skill | 1 | Remove all your debuffs. Gain 6 thelost:Tears, 1 (2) Strength, and 1 (2) Dexterity. Exhaust. |
| Leviathan Form |  | Rare | Power | 3 | Ethereal. (not Ethereal.) At the start of your turn, gain 4 thelost:Evil. |
| Lil Delirium |  | Rare | Skill | 1 (0) | Target enemy becomes thelost:Delirious. Exhaust. |
| Mercurius |  | Rare | Power | 3 (2) | Attacks cost 0. Whenever you play an Attack, Exhaust it and gain 3 thelost:Nebula. |
| Mom's Knife |  | Rare | Attack | 1 | Deal 10 damage. Increase this card's damage by 7 (10) this combat. |
| Neptunus |  | Rare | Power | 2 (1) | Innate. Whenever you gain thelost:Nebula, gain 1 more. |
| Revelation |  | Rare | Power | 2 (1) | At the start of your turn, Channel 1 thelost:Purity. |
| Rock Bottom |  | Rare | Skill | 4 (3) | Gain 999 Artifact. Exhaust. |
| Sacred Heart |  | Rare | Attack | 2 | Deal 20 damage. Strength affects this card 4 (6) times. |
| Sacred Orb |  | Rare | Power | 3 | At the start of your turn, (draw 1 additional card and) thelost:Reroll. |
| Satanic Bible |  | Rare | Skill | 1 | Gain 9 thelost:Evil and 1 (2) Strength. Exhaust. |
| Soy Milk |  | Rare | Skill | 2 | Gain 3 Dexterity. Lose 2 (1) Strength. |
| Name | Image | Tier | Pool | Description | Flavor |
|---|
| Holy Mantle |  | Starter | Lost_light_blue_color | At the start of each combat and event, gain 1Buffer. | A holy shield bestowed by angels. |
| Soul of the Lost |  | Starter | Lost_light_blue_color | Non-boss chests have a 50% chance to contain a second relic. When climbing a floor, Max HP is set to 1.Ascend against the Heart. | You have left your body behind. Something else ties you to this plane now. |
| Devil's Crown |  | Common | Lost_light_blue_color | At the start of your turn, gain 1thelost:Evil. | A crown to denote the Devil's special customers. |
| Flat Stone |  | Uncommon | Lost_light_blue_color | At the start of your turn, gain 3thelost:Tears. | A stone that seems good for skipping. |
| The Battery |  | Uncommon | Lost_light_blue_color | The first card you play each combat is played twice. | A regular battery. Good for storing charge. |
| Crystal Ball |  | Rare | Lost_light_blue_color | At the start of each combat, gain 2Artifact. | If you look close enough, you might be able to see into the future. |
| Divine Intervention |  | Rare | Lost_light_blue_color | Taking damage during events drains from a pool of 40 HP. | He will be your shield when your own fails you. |
| Psy Fly |  | Rare | Lost_light_blue_color | At the start of each combat, gain 1Intangible. | This little fly seems like quite the flamboyant protector. |
| Cracked Key |  | Boss | Lost_light_blue_color | Gain [E] at the start of your turn. At the end of your turn, remove ALL your thelost:Buffer. | Don't regret exploring the other side. |
| Eye of the Occult |  | Boss | Lost_light_blue_color | ALL enemies are thelost:Delirious. At the start of your turn, gain 1Vulnerable. | Power, but at what cost? |
| Eraser |  | Shop | Lost_light_blue_color | Upon pickup, remove a card and ALL copies of it from your deck. | Erase thy enemy. |
| Name | Description |
|---|
| Multiword Keyword | Make sure the first element in the NAMES is the same as your PROPER_NAME. The rest should use _ to replace spaces and be entirely lowercase. In card text, you'll use the underscore versions. |
| This is displayed in the tooltip. | This is displayed in the tooltip. Note, spaces are not allowed in NAMES. Also, they should be entirely lowercase. For multi-word keywords, see the next one. |
| Buffer | Prevent the next instance of HP damage per stack of Buffer. |
| Delirious | Permanently receive +50% attack damage. Bypasses Artifact. |
| Entangled | You cannot play Attacks for the rest of this turn. |
| Evil | If you have 10 or more Evil, spend 10Evil to gain 1Energy,2Strength, and draw 1 card. |
| Leviathan | At the start of your turn, gain Evil. |
| Nebula | This turn, whenever you're attacked, deal damage back. |
| Purity | Orb. Passive: Deal damage to a random enemy. Evoke: Gain Focus. |
| Reroll | Discard any number of cards, then draw that many cards. |
| Tears | At the end of your turn, gain Block equal to your Tears stacks. Lose half your Tears at the start of your turn. Affected by Block modifiers. |