Darza Dominion should have a Local and Online Mode.
"Local mode" it would have the same concept as the Online Except:
"No loot loss after death"
"The damage of all enemies would be raise 2x-3x"
" no Multiplayer capability"
" No UT, RELIC, and Special drops "
"Only T1- T6 drops"
Online mode would have all the same things as before.
This idea give the players a chance to practice all the dungeons as many time before entering Online. Also i believe that this would surely bring more people to the game.