Mahamudra vidyadhara

Mahamudra vidyadhara (Tib. chakchen rigdzin; Wyl. phyag chen rig 'dzin) — the third of the four vidyadhara levels. At this level, the vidyadhara's body is transformed into the form of the yidam and their mind becomes inseparable from thewisdom mind of the deity.
Alternative Translations

    great mudra vidyadhara (Light of Berotsana)
    knowledge-holder of great sign (Tulku Thondup)
    vidyadhara of the great seal
    vidyadhara of mahamudra
    vidyadhara stage of Mahamudra realization

Source

www.rigpawiki.org