So can we have a thread about this motherfucker for a second? I ran some calcs assuming that his attack will be at least as high as Megachomps, at 170, and with an Adamant boosted, fully invested Attack stat, Megamence would oneshot almost the entire ubers lineup after a single dragon dance.

Keep in mind, these stats are after a DD and assuming 170 attack.

+1 252+ Atk Aerilate Salamence Double-Edge vs. 252 HP / 252+ Def Groudon: 291-343 (72 - 84.9%) -- guaranteed 2HKO after Leftovers recovery

+1 252+ Atk Aerilate Salamence Return vs. 252 HP / 0 Def Giratina: 373-441 (74 - 87.5%) -- guaranteed 2HKO after Leftovers recovery

+1 252+ Atk Aerilate Salamence Return vs. 0 HP / 0 Def Rayquaza: 477-562 (135.8 - 160.1%) -- guaranteed OHKO

+1 252+ Atk Aerilate Salamence Return vs. +1 252 HP / 252 Def Mega Mewtwo X: 462-546 (111 - 131.2%) -- guaranteed OHKO

+1 252+ Atk Aerilate Salamence Return vs. 4 HP / 0 Def Kyogre: 477-562 (139.4 - 164.3%) -- guaranteed OHKO

Just for a taste, if it's speed stays high or get's a boost and he gets ES from move tutor, the power is gamebreaking.