From OSE SRD
Large, dragon-like creatures with multiple, serpentine heads. Sea hydras (adapted to water, with fins) also exist.
|Armour Class||5 |
|Hit Dice||5 to 12 (8hp per HD)|
|Attacks||5 to 12 × bite (1d10)|
|THAC0||By HD (15 [+4] to 10 [+9])|
|Saving Throws||By HD|
|Number Appearing||1 (1)|
- Heads: 1d8+4 heads; 1HD per head.
- Disabling heads: For every 8hp damage taken, one head is disabled (cannot attack).
- Variants: Special hydras sometimes found with venom, fiery breath, etc.