The Lions booked a place in their third successive Super Rugby final on Saturday, following a topsy-turvy 44-26 victory over the Waratahs in Johannesburg.
Having fallen 14-0 down to the fast-starting Tahs after tries from Ned Hanigan and Israel Folau, the Lions hit back with first-half scores of their own through Kwagga Smith, Malcolm Marx and Aphiwe Dyantyi.
Waratahs prop Tom Robertson then scored in the final minute of the half after a lineout move, but Bernard Foley's missed conversion left the scores at 19-19 at the break.
The second half proved a different story, as the powerful Lions took hold of proceedings and after replacement hooker Damien Fitzpatrick's yellow card for offside - a repeat Waratahs infringement - the home side were ruthless.
Marx notched his second from the ensuing lineout, at the back of a rolling maul, before flanker Smith scored his second five minutes later.
Elton Jantjies added a long-range penalty before Waratahs replacement Jake Gordon scored with four minutes left. It was too late for the Australian side, though, as Courtnall Skosan's last-minute try rubber-stamped victory and a date with the Crusaders in Christchurch.
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