Isa Nacewa returns from injury to take his place against The Dragons at The RDS this evening (KO7.35, TG4).
The Leinster captain is excited to be back and just as enthused about the rise of Jordan Larmour, operating out of full-back.
"You've just got to let him loose and don't restrict him too much within the system," issued Nacewa.
"I would almost encourage him to go 100% and don't stop, because he's electric.
"He's an out-and-out finisher," he said.
"He is one of those guys you just want to get the ball to and see what happens."
The X-Factor Larmour offers is not unlike that of Ireland international Joey Carbery.
"Someone with his ability and skill, similar to Joey, expect something to happen and go from there.
"He is a ball of energy and he's bloody fun to play with."
The tall, agile blindside Josh Murphy has been selected to add to the 19 minutes of rugby played against Glasgow in his debut three weeks ago.
Even though Leinster have been ravaged by the loss of Ireland's elite and the unavailability of centre Garry Ringrose and flanker Dan Leavy, they can still have three Irish international on the bench in Jack Conan, Andrew Porter and Richardt Strauss.
The Blues will have to be careful not to under-estimate Bernard Jackman's Dragons, who have been playing away in the Anglo-Welsh Cup as they are third in Conference B, seven points behind The Scarlets.
Leinster: J Larmour; F McFadden, R O'Loughlin, N Reid, I Nacewa (capt); R Byrne, J Gibson-Park; E Byrne, S Cronin, M Bent, R Molony, S Fardy, Josh Murphy, Jordi Murphy, M Deegan.
Dragons: A O'Brien; J Rosser, A Warren, J Dixon, A Hewitt; G Henson, S Pretorius; S Hobbs, E Shipp, L Fairbrother, J Davies, M Screech, A Wainwright, O Griffiths (capt), J Benjamin.