SPIRIT MEDIUM Spirit mediums are mages with the ability to communicate and commune with spirits. They can't summon spirits better than any other mage, but they are able to better communicate with them when they're around, including sensing them and their emotions, making complex instructions understood, and reading their minds. So this is my best attempt at figuring out how that might be implemented in combat situations.
⬥ SENTRY He can direct wisps to specific locations and maintain some influence over them from greater distances, allowing them to scout ahead, guard points, or attack from multiple angles. + COMMAND He can direct individual wisps to use different elemental attacks, rather than them all taking cues from his staff type. + RETREAT He can direct wisps to return to him rather than engage if they take damage or encounter enemies.
⬥ SHADOWS He can direct spell wisps to shadow other people rather than stay with him, giving those individuals the associated spellpower bonus (if they're mages). + PROTECTORS When a wisp is shadowing an ally, Guardian Spirit will trigger if the ally is in danger. + AVENGERS When a wisp is shadowing an ally, a Spirit Mark simulacrum will trigger if the ally is disabled.
● PSYCHIC While spirits are around, Kostos' ability to sense them and changes in their moods or see through their eyes means he can't be flanked, theoretically, subject to him making an actual effort in the thread.
● CARELESS WISPER During combat, he can maintain control over up to eight wisps at a time, assuming they're in a reasonable range.
★ ALLIANCE He can sometimes convince Fade creatures or possessed enemies to fight as allies. This is subject to all sorts of limitations, such as: he has to be close enough to communicate with them in the first place, it doesn't override free will so the more powerful and clever the spirit the more difficult it will be to convince them to do anything they wouldn't want to do, directing an enraged/panicked demon toward a new target will be easier than stopping one from fighting at all, if being able to convince a spirit not to attack the party would make the thread less fun then it just won't work, etc.
Spirit Medium