Custom Spell for Hydra Character

Name: United Souls
Type: Unknown
Incantation: No incantation, however once Hydra releases information about a certain topic the spell activates automatically.
Description: This spell is only usable by Hydra, and can only be used on Kronsire (its a secret for now) This spell will strike a silver line through Hydra and Kronsire at the point where their hearts lay, or used to lay (as Hydra is a hollow) This spell intertwines the two characters for eternity and they fuse together in one body, while keeping both of their approved powers, and possibly learning newer abilities. (Basically its a way to fuse two of my characters in a Role play in the future to create a more in depth character.)
Who can use it: Hydra
Character: Hydra

If thats the only use I see no problem with it. Approved.