It is a sacred trinity game, but for aion classic kinah buying pve anyway, you do not require a perfect group for many (any?) Of the material. You are able to get by most stuff without a tank for example. Class specialty resembles, you start as a"priest" or something, then concentrate at level 10 to cleric or chanter. Cleric is the main healing course, chanter is a buffer/support/heals hybrid,...