Beaten by FK Željezničar in the Bosnian and Herzegovinian Cup final 12 months ago, NK Široki Brijeg gained their revenge with a 5-4 victory on penalties against the holders in the 2013 showpiece.
Like the first instalment of the tie in Sarajevo, the second leg also ended 1-1, Šaban Pehilj forcing spot kicks with a late strike to cancel out Wagner's opener for hosts Široki Brijeg.
Luka Bilobrk made the decisive save in the shoot-out, stopping Muamer Svraka's effort, as Slaven Musa's men registered the club's second triumph in this competition. Široki Brijeg's win also denied Željezničar the domestic double after the capital club retained the Premier League title with two matches to spare at the weekend.
"We have achieved great success," said Musa, whose side are sixth in the Bosnian and Herzegovinian top flight. "Things have not worked out in the championship, so we focused our energies on winning this competition. It was difficult because in the final we played the best team in the Premier League."
Željezničar coach Amar Osim said: "It was a tough game, both teams know each other extremely well. We lost to a team that have been at the top of Bosnian football for the last few years and who are well-organised. I congratulate them on winning the cup."
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