Petrified

A petrified creature is transformed, along with any level 0 object it is wearing or carrying, into a solid inanimate substance (usually stone). Its weight increases according to material, and it ceases ageing.
The creature is incapacitated.
Creature's block class becomes that of a substance it is now made of and gains any damage threshold and damage reductions of that substance.
The creature is immune to poison damage.
Creature is immune to diseased and poisoned conditions.