+3 bleed damage removed with Heal DC 15
As a safe standard action, turn to mutagenic form without a Mutagen.
When failing a Fort save, or hit by a crit, attempt DC 25 Will: failure means you must mutate on your next turn.
When failing a save vs Enchantment, retry with mutagenic form's saving throw: success means you save, but must mutate on your next turn.