Maghera and Newry will meet again after finishing deadlocked in a thrilling MacRory Cup semi-final at Dunmoyle.
Peter Cassidy's late equaliser earned the draw for Maghera side St Patrick's, his stoppage time score bringing the sides level for the eighth time.
St Colman's struck for a goal in the 19th minute, Dara Noonan collecting Kealan Rice's pass to round his marker and slot to the net from close-range.
But Maghera fought back and led by 0-8 to 1-4 at the break.
Another Maghera flourish saw Gerald Bradley kick them into a three-point lead early in the final quarter.
However, Jack Haughey turned on the style with three St Colman's scores, before a Kealan Rice gem put them back in front three minutes from the end.
There was still time, however, for St Pat's midfielder Cassidy to swing over a glorious leveller.
St Patrick's Maghera: C McCloy, P McNeil, C Gallagher, O Hegarty, C Mulholland, C Glass, P Hughes, J Kearney, P Cassidy (0-1), C O'Doherty (0-1), G Bradley (0-4, 2f), S O'Hara (0-3, 3f), N Toner (0-1), C Convery (0-1), D Tallon (0-2).
Subs: N McNicholl (0-1) for Convery, C Carville for Hagan, C Murphy for Toner.
St Colman's Newry: J O'Hare, A McKiernan, M Finnegan, J Brown, M O'Hare, J McDermott (0-1), C Brown, J Curran, J Friel, C Sands, D Noonan (1-1), O O'Neill, L McGreevy, J Haughey (0-4, 3f), K Rice (0-4, 1f).
Subs: B Doyle (0-1) for Friel, J Fegan for Curran, E Grant for O'Neill.