5th skills... that you dont want

i saw a lot of ideas for 5th skill, but i want to see the worst skills that could the 5th have :v

what is a bad skill? not only low dmg, things that you can see why asobimo thinks its a good skill/passive, like:
sword skills:
buster aura (passive): when buster blade buff is active, increase 1m for attacks(including decoy), not valid for skills

magic skills:
chain element (skill): use a attack that can jump from one enemy to another in 4m up to 10 enemys(cant hit the same target)

 

hoping for skill awakening for lower tier not just like regislet give more mult/hit/rates/ which zero skill animation change

 

and the dmg decays by 20% each jump hahaha...... *chain caster ptsd*