> A hellwasp swarm can enter the body of a helpless or dead creature by crawling into its mouth and other orifices. [...] The swarm can abandon the body at any time, although doing this takes 1 full round. Any attack against the host deals half damage to the hellwasp swarm as well, although the swarm’s resistances and immunities may negate some or all of this damage.
If a hellwasp swarm inhabits a dead body, it can restore animation to the creature and control its movements, effectively transforming it into a zombie of the appropriate size for as long as the swarm remains inside. If a hellw…