well on campaign mode i tested a 28 druid 2 monk 10 shifter wisdom based it had 32 wis i added +12 to make it 44 wisdom and it had 33 DC i was under the impression it was 1 dc per shifter level not 1/2 so i guess 43 dc and it's a will save so if somebody is using 2 iron sights for discipline there pretty much boned but keep in mind thats only with 32 wisdom you could potentially get more if you go half elf and start with 20 wisdom + get extra great wisdom feat's so most likely around 44-45 dc on it if its half for shifter level which is still really good vs. a will save + with shifter you have other shape's to back you up