And a team with the firepower provided by Messi, Suarez, Phillipe Coutinho and Andres Iniesta, who is expected to announce a move to China soon after the final, is clearly going to be the favourite to win.
Having seemingly learnt the lesson of their slow start against Sevilla in last month's 2-2 draw in LaLiga, there was nothing slack about Barca this time around, as they quickly suffocated the Andalusian side.
Vincenzo Montella's men were caught out at the back just seven minutes later as Barca opened the scoring from Jasper Cillessen's long clearance that found Coutinho.
Sevilla responded fairly well, but Barca remained on top and almost got a second when Iniesta struck the crossbar with a left-footed drive from just outside the area.
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He capped his display with a superbly taken goal, latching onto Lionel Messi's inch-perfect pass before rounding the goalkeeper and scoring on a tight angle.
Luis Suarez said Barcelona's Copa del Rey triumph sets the team up for a Copa and Liga double they would have accepted at the start of the season, though he admitted the domestic success does not hide failure in the Champions League. Jordi Alba played a neat one-two with Iniesta, before putting a superb backheel into the path of Messi who hammered the ball high into the roof of the net. He had the ball in the back of the net when Suarez's flick struck Clement Lenglet on the arm and fell kindly for the Brazilian, but the referee called play back for a penalty. Messi became the second player to ever score in five Copa del Rey finals after netting Barcelona's second in the opening period of the Cup final.
Sevilla was trying to win a sixth Copa and save a season which will end without any trophies and maybe not even a place in the Europa League next season. The first player to achieve this feat was Telmo Zarra between 1942 and 1950 (eight goals).
The veteran midfielder is considering a move to the Chinese Super League and this could be his last cup final for Barcelona - and he made sure it was one to remember. Barcelona now sits pretty at the top of the La Liga table, 12 points ahead of second-placed Atletico Madrid with five games left in the campaign and they are anything but crowned champions of Spain.