tho lky first was a atk skill and not a buff o.o''
about sticky icky...yes u MUST to learn it. the formula uses more lk then da for better results so since u're lk build skill will work out great.
other important point is shield breaker has a long casting time and a pathetic sucesfull rate>.>'' u'll miss many times and as a gunner u dun have time for that, sticky is pretty fast and hella usefull
