>>23341109>Archeops basically halves its offenses when it uses head smash.We're talking about the viability of a theoretical Rock Head Archeops, there's no point in even comparing them if it's stuck with Defeatist.
Tyrantrum doesn't perform well as a set-up sweeper in OU due to poor defensive typing, shit special defense, and relatively low speed that leaves it vulnerable to being revenge killed after a boost. Both it and Rock Head Archeops would work best as wallbreakers.
>implying Strong Jaw matters when you can have STAB Rock Head Head SmashNeutral STAB Head Smash -> 225 BP
Super-Effective Strong Jaw elemental fang -> 195 BP
>>23341142Base 140 attack is only mediocre on a Mega that doesn't have a penalty-free 100+ BP STAB to abuse after factoring in its Ability. On a Pokemon that can hold an item and is packing a spammable move that's stronger than Selfdestruct, 140 base Attack is fucking incredible.