What it do?
Code:
#showtooltip Colossus Smash
/castsequence reset=0.3 0,0,0,0,Victory Rush
/castsequence reset=0.3 0,0,0,Slam
/castsequence reset=0.3 0,0,Overpower
/castsequence reset=0.3 0,Mortal Strike
/castsequence reset=0.3 Colossus Smash
/cast !Colossus Smash
/startattack