BFFS!
(page 3, column 3, row 5)BFFS! is a passive item.
Effects[edit | edit source]
- Visually increases the size of all familiars by 25%, and improves the effectiveness of most of them.
- Doubles the damage of Familiars that deal damage through tears and contact damage.
- Only affects familiars that deal a set amount of damage. Has no effect on most familiars that scale with Isaac's damage.
- Has no effect on Creep generated by familiars.
- For pickup-generating familiars, increases the frequency that they drop pickups.
- Familiars that require clearing a certain number of rooms will require one less room.
- Familiars that have a random chance to drop items have a higher chance.
- Familiars that pick up consumables require less, except
Dark Bum which is unaffected.
- Some familiars have unique synergies.
- Doubles the damage of Familiars that deal damage through tears and contact damage.
Notes[edit | edit source]
- The size change is only cosmetic: familiars' hitbox for blocking damage or attacking is not affected.
- Familiars summoned by a trinket or by
Monster Manual are also affected by BFFS!. - The Blue Flies and Blue Spiders benefit from
Hive Mind instead. - Does not increase the frequency or effectiveness of Status Effects applied by familiars.
Synergies[edit | edit source]
BBF/
Bob's Brain: Doubles impact damage and increases explosive damage by 25.
Holy Water: No effect.
Double water damage, spawn a blue flame at point of impact.
Incubus/
Fate's Reward: Deals double Isaac's damage instead of copying it.-
Isaac's Heart: No effect.
- Increases the damage of the charged attack.
Juicy Sack: Spawns an extra Blue Spider.
Lil Spewer: Increases the creep pool's size, but not its damage.
Mystery Egg: Spawns a champion variant of the enemy, even if the enemy can't normally be a champion.
Lost Soul: Gives the Lost Soul Holy Mantle.
Interactions[edit | edit source]
Evil Eye: The eyes are not treated as familiars and therefore will not synergize with BFFS!
Guillotine/
Scissors: Doesn't change the head's size, but still improves its damage.- Orbitals: The damage is doubled as expected, but the hitbox for orbitals does not increase for additional protection or reach.
Shade: Retains the increased damage even after being absorbed.
No Effect[edit | edit source]
The following familiars will appear larger, but gain no actual benefits.
In-game Footage[edit | edit source]
Trivia[edit | edit source]
- BFF stands for Best Friends Forever.
- This item is used in The Family Man (challenge #19).
Familiar Modifiers
 The Binding of Isaac: Rebirth
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