| Brood Queen | 60 | | Yes | | 70% Mind -20% Poison |
| Boss Scalo | 60 | | Yes | | 25% Cut |
| BoneSnarl | 10 | Undead | Yes | | -25% Blunt 50% Pierce 50% Cut 70% Arrow 50% Magic Missile 50% Nature 50% Soul 50% Mind 50% Body 100% Poison 100% Disease |
| Black Tail | 135 | | Yes | | 25% Cut 70% Nature 50% Mind 70% Body 100% Poison |
| Bull | 7 | | No | Pierce | |
| Balron | 125 | | No | Cut | 40% Arrow 25% Nature 25% Soul |
| Brown Bear Cub | 15 | | No | Pierce | |
| Brown Bear | 23 | | No | Pierce | |
| Bone Scavenger | 95 | | No | | 30% Pierce 30% Cut 30% Body |
| Blue Crab | 84 | Sea Creature | No | Cut | -4% Blunt 25% Pierce 30% Arrow |
| Blood Scorpion | 30 | | No | | -5% Blunt 100% Poison |
| Black Widow Hatchling | 9 | Vermin | No | Pierce | 100% Poison |
| Black Death | 37 | | No | | 20% Pierce 100% Poison 100% Disease |
| Black Cat | 85 | | No | | 40% Blunt 25% Arrow -10% Mind 100% Poison 100% Disease |
| Black Adder | 4 | Vermin | No | Pierce | 100% Poison |
| Bighorn Ram | 26 | | No | | |
| Battle Horned Viper | 15 | | No | | 30% Arrow 50% Nature 100% Poison 100% Disease |
| Bat | 1 | Vermin | No | Pierce | 25% Arrow 25% Mind |
| Basilisk | 110 | Vermin | No | Cut | 20% Pierce 20% Nature -5% Soul |
| Basilia the Shadow | 100 | | No | | |