Note the short /say on the end of each macro. This gives a clear signal so you know the macro is done and you can start the next one without disturbing the last. As NCSoft has significantly increased the max length for macros you can feel free to add more colorful or amusing messages.
/attack /Skill Weakening Severe Blow III /delay 1.3 /Skill Divine Blow I /delay 1.4 /Skill Ferocious Strike III /delay 1.3 /Skill Robust Blow III /delay 1.3 /Skill Wrath Strike I /say Aha!
/attack /Skill Shining Slash II /delay 1.3 /Skill Provoking Severe Blow II /say Wam!