The nora refund you get from the sp faction bonus when a champion dies is not working properly. This refund is only given when your champions dies by champion attacks or abilities, but not when your champion dies because of other effects (dots, spells, relics, loss of life due tow arbanner being killed). This has been tested both in 1v1 and campaigns, but not in 2v2. It also has been test in SP/x splits and in full faction.