Baptism by Fire

From Binding of Isaac: Rebirth Wiki
Jump to: navigation, search
Baptism   by   Fire
Table dividing line 1.png
Challenge Number
Available Rooms
Item Pool Treasure Room.png: no          Item Pool Shop.png: yes
Boss Isaac.png
Purgatory Purgatory
Unlock Method

Baptism by Fire Defeat Satan as Bethany, defeat Mom's Heart 11 times and unlock Maggy's Faith Maggy's Faith

Added in Repentance

Baptism by Fire is challenge #38. The goal is to defeat Isaac. This challenge is unlocked by unlocking Maggy's Faith Maggy's Faith and defeating Satan as Bethany, with 11 Mom's Heart kills.

Strategy[edit | edit source]

Bethany starts with the 15►Urn of Souls Urn of Souls as her only method of attacking, as she is blindfolded. The item initially has no charges, but can be fueled by the 4 soul charges Bethany starts with. You must carefully destroy enemies to gain charges faster than you deplete them, with the goal of gradually building a healthy stockpile of soul charges. If you do manage to run out of charges, you can gain 6 extra soul charges by sacrificing one heart container with 15►Guppy's Paw Guppy's Paw, but this is by no means necessary to complete the challenge. If you find another active item that you feel will help you in your run, don't be afraid to swap away the Paw for something better.

Additionally, she starts withMaggy's Faith Maggy's Faith, providing one free Eternal Heart per floor. This can be used to soak one hit, or (preferably) to gain an extra heart container if you manage to clear the floor without being harmed.

Minimal controlled bursts, with each burst destroying at least one enemy, allows you to retain or even gain charges. Expect to make a few practice runs as you get the hang of the Urn's controls and learn to group enemies for increased efficiency. A surprising number of enemies and even boss encounters can be won simply by avoiding attacks and allowing your foes to defeat themselves with explosions or environmental hazards. The early boss Little Horn is a perfect example of this, as well as Baby Plum, as simply waiting in the boss room will complete the fight.

Since she has no 15►Book of Virtues Book of Virtues in this challenge, Bethany is not guaranteed an Angel Room after the first boss encounter. This means you will encounter Devil Rooms more often than not, and most of the items found there are useless for this challenge. Exceptions include high damage familiars such as Lil Brimstone or Rotten Baby. If Guppy items are offered, these may also be worth accepting; you already start with one of the three needed items, and the transformation will cause the flames of your Urn to spawn blue flies, greatly enhancing offensive power.

Shop items such as Red Candle or The Candle will allow Bethany to deal damage as an alternate/backup to the urn. These items can also be used to safely build up charges before a boss fight.

Unlockable achievements[edit | edit source]

  • Purgatory
    Purgatory - Complete Baptism by Fire (challenge #38).

MainPageChallenges.png Challenges MainPageChallenges.png

1. Pitch Black 2. High Brow 3. Head Trauma 4. Darkness Falls 5. The Tank 6. Solar System 7. Suicide King
8. Cat Got Your Tongue 9. Demo Man 10. Cursed! 11. Glass Cannon 12. When Life Gives You Lemons 13. Beans! 14. It's in the Cards
15. Slow Roll 16. Computer Savvy 17. Waka Waka 18. The Host 19. The Family Man 20. Purist
21. XXXXXXXXL 22. SPEED! 23. Blue Bomber 24. PAY TO PLAY 25. Have a Heart 26. I RULE! 27. BRAINS!
28. PRIDE DAY! 29. Onan's Streak 30. The Guardian
Afterbirth †
31. Backasswards 32. Aprils Fool 33. Pokey Mans 34. Ultra Hard 35. Pong
36. Scat Man 37. Bloody Mary 38. Baptism by Fire 39. Isaac's Awakening 40. Seeing Double 41. Pica Run 42. Hot Potato
43. Cantripped! 44. Red Redemption 45. DELETE THIS
The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth
Achievements Achievements Attributes Attributes Bosses Bosses TarotCard.png Cards and Runes Challenges Challenges Chapters Chapters
Characters Characters MainPageBabies.png Co-op Items Items Item pools Item pools Monsters Monsters Objects Objects
Pickups Pickups Pills Pills Rooms Rooms Seeds Seeds Transformations Transformations Trinkets Trinkets