To tame a voidwyrm you need plenty of mutagen gathered from rockwells inards or made from mutagel, Voidwyrms cant be trapped as they easily can destroy a trap even made from tek. You are best using a sniper and hlna scan until it is at about 10% its max hp, You'll see a glow admit from it when its ready and music will start playing. Next hop on the wyvern and everytime it barrel rolls press your mount button. On a laggy server the wyvern can be quite annoying to tame as lag can sometimes make you miss press during the barrel roll, So i recommend taming during the time your server has the least players.

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