User blog comment:Emptylord/Class Reworks - Itemization Follow-up/@comment-28450428-20160513164728/@comment-3974211-20160513171210

Runic Echoes literally has a stronger AP ratio than on line and the item now holds two charges... I don't understand by what metric you consider it weaker? Yes, it cannot stack with Lich Bane, but the only champions who stacked it with Lich Bane deserve to have this power taken away from them - Diana, Fizz and Ekko can already one-combo people without being given a cheap way to do it at 12 minutes into the game.

That said, technically they could stack it with Lich Bane even in the above form. Assuming all effects cost 100 charges, at 200 charges the jungler may use both. I suppose I should reconfigure it so that Runic only consumes 50 charges.