Yes, that's true . I only needed 3 amethyst to reroll the set affix on some gears coz I didn't fit to the build. Like my orb previously aftermath to living force , the masochist amulet to Plague , and the robe ( not in the photo ) Druidic (with max mp Regen ) to Reactor of course .
lucky to give them only 1 shot of try. That's why I spent only 3 amethyst . But planning to change wrap and oh (to Defiant and pathfinder )if I'm lucky to hunt gears with dodge crystal affix.