Brisbane's attitude remains the "$64 question" for coach Chris Fagan as they try to cement their status as the next AFL premiership dynasty.

The Lions are celebrating back-to-back premierships after Saturday's 47-point grand final win over Geelong, with Fagan admitting this felt better than last year's triumph against Sydney.

Fagan added on Monday that the two premierships meant he no longer felt like a coaching impostor, given he had never played in the AFL and considering his unique progression from Tasmanian football through to the Lions.

Asked about Brisbane's prospects of claiming the latest flag three-peat, Fagan said his players' mindset remained the most important factor.

"We talked about again, after (Saturday's) game, that the key to us having a good year this year was we did

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