>>17800457Excadrill got cockblocked by Trevenant/Gourgeist and got raped by Landorus-T every single time.
Having Excadrill also means that more than 2 out of 6 of your Pokes are weak to QuakeEdge combo, assuming that Excadrill is spinning for someone who is weak to Rock
M-Blastoise is THE BEST rapid spinner in the game. However, many people prefer to use their megaslot for something else due to the opportunity cost of having Mega pokemon exclusively for rapid spinning