OML.
Sorry mate, nothing personal but
your post makes no sense. At all.
How that's one of the best coverage if it clearly beats less than tyrantrum's coverage? And I don't agree that ground/rock is that good. Due to very common ground resistance in OU you have to make good prediction or you give your opponent free switch. There is reason why stuff like tyranitar don't runs edgequake anymore. Pay attention that there is only one reason why bulky grounds (gliscor, lando, hippo) run edge - TALONFLAME.
Has ice fang lol.
Mega Bro - da major thread
Even if you want to preapare against megabro tyrantrum is better. Why? BECAUSE IT CAN SURVIVE SCALD!
0 SpA Mega Slowbro Scald vs.
172 HP / 0 SpD
Solid Rock Rhyperior: 525-621 (126.8 - 150%) -- guaranteed OHKO
0 SpA Mega Slowbro Scald vs.
0 HP / 0 SpD Tyrantrum: 166-196 (54.4 - 64.2%) -- guaranteed 2HKO
Also has strong jaw boosted Crunch.
Why Rhyperior has awful, awful special bulk and not like tyrantrum is weak on physical side. Only real rhyperior's advantage over tyrantrum is switching on twave.