The +5 flanking bonus is not added to a unit's DMG (as per description). Instead it is added after the attack is made. This causes wrong interactions with abilities like Soulsphere's. Test: - Deploy a Soulsphere - Get engaged by two champions, one with flanking - Champion with flanking attacks. Expected result: - base damage +5 is divided between all champions Actual result: - base damage is divided between all champions; attacked champion takes extra 5 damage. I guess the +5 might also not be affected by vulnerabilities and amplifications, but I haven't tested it.