[Snake]

This could be a subject for discussion in balance-fu (@what this could become).

A braindead suggestion could be "Shining Charisma reduces all damage taken by the party by 10-15% (stacks per knight on field, up to a maximum of 30%), as long as the Shine Knight is not suffering from Fear/Hesitation/Charm", or whatever. It's so hard to summon them anyway.

Also, that aside and in relation to another topic. Most of Shine Knight's auras/passives that affect an area might need a visual indicator, since they're bugging constantly and we can't pinpoint when we're being affected by them or not.