also, its a priority based move, so it goes first regardless of speed. i think its 3 or 4 priority the last time i checked. its pretty integral in getting the highest damage possible in pokemon. lvl 100 adamant marowak + thick club + stab + eq + critical + belly drum + 252 atk evs + max atk IVS + huge power against a lvl 1 aron with -6 def, 0 def IVS 0 def evs