>TQ
The obvious idea is a dedicated wizard/priest dual kit.

Something i'd do is add a bunch of gargants to other factions like a zombie gargant in Soulblight or a Azyr Shrine carrying gargant in CoS and then make them all playable in SoB (or at least have the GA related Mega Gargant enable you to use gargants from that GA, like Gatebreaker letting you play the zombie one)