Dorg
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In my opinion, this ability cannot be changed in any way - it was created for a hero-easter egg who doesn't even appear once in the game.
This ability was used in NHF for some barbarian hero; you can check if it was fixed there or not.
Added 1 minute ago
When I say NHF, I mean the old version without MCCS; everything might be changed in the new versions.
I understand, thank you for the explanation; I'll take a look, but I don't have much hope for a positive outcome, which is a shame.
Thanks again for your help.