To clear up, damage of Armageddon was never nerfed and was always 4x HP/MP (checked 1.2.6 server files just to make sure). So the OP is asking for a 2.5x damage boost of particular skill which is not well-thought in my opinion.
i love how ppl say "-1 barb is fine as it is" and has lowest playrate on the server
"I want to be a tank and 1shot people too."rofl -1 Find some other way to make barb viable again. One-shotting people as a tank is not the answer.
there's always solution to give barbs the 10 atk lvl back, 5 they lost with skillsender patch (which probably wasn't needed to begin with) and 5 that they lost because back then DBs didn't exist, now every1 cries about DBs being op cuz they're destroying DDs, atleast WB took shit ton of luck + skill to destroy a DD in mass pk