|Anaxial Annex. Member of Chaos Gaggle. A bastok is a chaotic wyvern, and resembles the normal kind save for its two tails and its mottled, bluish-purple colouration. A bastok attacks in a similar manner to a wyvern, and can employ both stings simultaneously against any given attacker. However, only the right hand sting is actually venomous, the other merely stabs to cause normal injuries. Bastoks can also spit gobs of acid at their opponents, but tend to reserve this for a tactic of last resort.