The two sides go head to head for the first time in 12 years at the Suncorp Stadium, with Genia expecting a mammoth encounter despite the tourists' defeat to the Brumbies on Tuesday night.
"It's unbelievable. To think you are playing the best of the best from four nations - it's tough enough playing England, Ireland, Scotland or Wales on their own," Genia told AAP at his country's training camp in Brisbane.
"But to have the best of the best put together, it's going to be tough and it's going to be intense.
"The All Blacks are a great team and they are incredibly difficult to play against. I've never experienced this. But all I can say is from what I've seen and a lot of what I've heard the passion, the intensity and the physicality is going to be greater than anything we've ever experienced before, so that's what we're preparing for."
Genia is set to pull the strings for Robbie Deans' troops at his home ground, with James O'Connor all but certain to start outside him in the No10 shirt.
But while The Lions will be wary of the need to keep a close eye on the 41-Test vice captain, Genia himself has warned his colleagues to keep their discipline after seeing Leigh Halfpenny and co enjoy a superb success rate from the kicking tee so far on tour.
"One thing we really have to be is hard on our discipline in defence. We've seen Halfpenny the last two times he's played he didn't miss a kick, and he's kicking them from everywhere," added Genia.
"I think points will be hard to come by and we have to limit their opportunities with penalties."