1)about ulti drop change - we will keep regalia for hosting + chance for another, even if you join + guaranted fragments (up to 5)+ chance for 2-3 extra fragments + new currency (dragon orb, pages, phantom weapons etc) + t3-t4 stars +some garbage like sr fodder weapon, exp currency
2) wind ulti is debuff immune... Yama aw just didn't knew about it. in other cases it's almost true.
3) thunder ulti hits hard... disagree, even Frigg is more then enough to keep hp at about 100% during aab with -50/50. Water/light hits much harder comparing to thunder. Dark will be nerfed somedays, it's solo aab-able now even with off-element. Top team is Shingen, X, Eros aw, Sol aw, Mike aw. X is Tishia or damage dealer like Vishnu etc (I guess that Tishia is #1 because we have 0 def debuff in other case). This team makes almost impossible to fail during dark ulti/rag (excluding if you kill only 1 add on rag and keep second alive ). Unfortunately I have only Eros and Tishia. Mike is must have to make Eros work properly. Her aw will be this winter just like raid rework (i don't remember exact date). Block a debuff + get 20 charge bar to everyone after each burst is a good strategy to win dark ulti/rag.