Here is the full list of all 36 Blood Card achievements.
Defeat the Fire Dragon.
Defeat the Bloody Eye.
Defeat the Falling Single.
Defeat the Demon's Skull.
Defeat the Golem.
Defeat the Greedy Mouth.
Defeat the Hydra.
Defeat the Headless Horseman.
Defeat the Ghost Bride.
Beat the game by walking through every room.
Beat the game by killing the Death.
Beat the game in under 30 minutes.
Beat the game 3 times in a row.
Unlock all cards.
Obtain at least 100 temporary cards in a single combat.
Accumulate at least 100 curse cards in draw pile in a single combat.
Destroy at least 100 cards in a single combat.
Have no hand at the end of every turn of combat.
Gain 100 cards in total for leaving the discard pile in a single combat.
Gain no block in a single combat.
Gain more than 100 blocks during combat.
Win a combat on the first turn.
Win a combat against an Elite on the first turn.
Win a combat against a Boss on the first turn.
Wear 10 equipment at one time.
Beat the game without using equipment.
Walk through all rooms with a question mark in one game.
Walk through all elite rooms in one game.
Use 20 cards in one round.
Find no cards in the discard pile upon winning a combat.
Own 1000 or more golds.
Defeat max level Death with the Blackblood.
Use a total of 9,999 cards.
Defeat max level Death with the Bloodwitch.
Defeat Death on the first floor.
Defeat max level Death on the first floor.