This is a little mistake, Dwarf lord has a power that can gain 4 armor, but the translation to spanish says that it will gain attack, however, it gains armor, but can make people think other things
Here you are: http://support.505games.com/support/home
Follow that link and create a ticket there.
Sadly the staff here can mainly only help on the PC/Phone/Tablet platforms, so bugs/errors need to be handled by the third-party, 505Games.
If you need any help or have a question not related to bugs/errors though, we should be able to help you here. =)
I’ll double check our version to make sure it’s not on the PC/ mobile versions
It appears the PC version also says “Ataque”.
Well that would explain why the port has the spelling error.