Help: Razor Spines Usage sling 'razor spines' Available Kaiju level 1: Razor Spines. Razor Spines is one of the Kaiju growth-form buffs. It uses the mutation affect path and can be cast on yourself. Notes The internal skill name is Grow Spines, but the spell name shown to players is Razor Spines. See Also: kaiju, grow, behemoth plates