you get one free with Legion (pre-order or otherwise), but you can also buy one in the store.That's right, i forgot about the 90 boost. I wasted mine on a dwarf monk on some random server *rollseyes*
Is 100 boost only for preorders?
I used my 90 boost on a human monk that I leveled to 100 and never touched again.
used my 100 boost on a night elf druid who I really want to try playing, but work has been an absolute shit show lately and I haven't had time to game :\(literally worked every single day this weekend thanks to a DR fail-over project)