Griffiths reckons his side are untouchable when they hit top gear, as the Light Blues found to their embarrassment after a 4-0 Scottish Cup semi-final hammering.
But the 27-year-old has little sympathy for his Old Firm rivals, whose players cheered when they were paired with Celtic in the semi-final draw – only to be thrashed at the national stadium.
Griffiths said: “We had so much room in the box that it was 4-0 going on five or six.
“When we bring our ‘A’ game then nobody in Scotland can touch us – you saw that on Sunday.
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That was a game they cheered for, but you should be careful what you wish for in case it comes back to bite you
“That was a game they cheered for, but you should be careful what you wish for in case it comes back to bite you.”
Griffiths gave short shrift to talk that Rangers are closing the gap on Celtic after two years back in the top flight of Scottish football.
Last year the Ibrox side finished third in the Premiership – 36 points behind the Hoops’ treble-winning Invincibles.
This term Celtic are 13 clear of Graeme Murty’s team with five games to play, but Griffiths argues that a clear gulf in class remains. The Hampden thrashing saw Brendan Rodgers take his record against Rangers to 10 games without defeat.
Graeme Murty responds to Rangers’ 4-0 defeat to Celtic 1769450627eZDiIEVc
Griffiths added: “From start to finish, we dominated the game in every aspect.
“Their manager might have said before the tie that the gap between us was closing – but those are his words.
“In our changing room we just focus on the job in hand. At the end of the day, all that matters is that we get the job done.”