Fixed! Soul (and the other Cygnus 1st-job spirits: Flame, Storm, Darkness, Lightning) are real attacking summons now, the way the skill description says ("Summons a Fairy who attacks enemies within a given range") - they hit up to 3 monsters in range every 3 seconds using the skill's attack value. They also follow you to the next map now instead of vanishing at the portal. To check: cast Soul near a few monsters and watch it strike, then change maps.