+1
Sorc, Druid and Alch has they mechanic to rip out immunity. Wiz can do that with undeads only (what still lets a lot of mobs immunies) and as soon they improved the infricts dmg some ppl was playing 16 cleric / 4 wiz, but the SP was drained too fast, what makes this build unreliable. To make it right, the cleric needs to overcome immunities and maybe had some SLA. We need to count the infrict is FOR save based and has the worst filigrees, so, mobs will save more than they save for Sorc/Alch/Druid casters.
A nice plan, but still not well balanced. Need to improve the design