Suggest: maybe when you soft reset the game, the new raid give the same item but more powerful. Example: the ancient sword drop after 1 softreset give 22% dmg bonus (+10%), 24% after 2 softreset and so on. in this way it is an incentive to keep doing raid and attention on the game. Sorry for bad eng.
 "Idle Raiders"){kind=icon}
 "Epic War 5"){kind=icon}