>>23025010Here are some calculations ( I threw Stealth Rock on there beecause teams usually run it somewhere for opposing Talonflame if they're using Heracross).
-1 252 Atk Mega Heracross Close Combat vs. 252 HP / 248+ Def Granbull: 74-87 (19.2 - 22.6%) -- possible 5HKO after Stealth Rock and Leftovers recovery
-1 252 Atk Mega Heracross Pin Missile (5 hits) vs. 252 HP / 248+ Def Granbull: 80-95 (20.8 - 24.7%) -- possible 5HKO after Stealth Rock and Leftovers recovery
-1 252 Atk Mega Heracross Rock Blast (5 hits) vs. 252 HP / 248+ Def Granbull: 110-130 (28.6 - 33.8%) -- approx. 0% chance to 3HKO after Stealth Rock and Leftovers recovery
... And after a Swords Dance boost...
+1 252 Atk Mega Heracross Close Combat vs. 252 HP / 248+ Def Granbull: 166-196 (43.2 - 51%) -- 59% chance to 2HKO after Stealth Rock and Leftovers recovery
+1 252 Atk Mega Heracross Pin Missile (5 hits) vs. 252 HP / 248+ Def Granbull: 175-210 (45.5 - 54.6%) -- approx. 98.8% chance to 2HKO after Stealth Rock and Leftovers recovery
+1 252 Atk Mega Heracross Rock Blast (5 hits) vs. 252 HP / 248+ Def Granbull: 235-280 (61.1 - 72.9%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
... And for attacking back...
0 Atk Granbull Play Rough vs. 0 HP / 4 Def Mega Heracross: 204-240 (67.7 - 79.7%) -- guaranteed 2HKO
So Heracross-M is likely to be forced out -- a great opportunity to support your team with Thunder Wave regardless. And Fairy is such a great typing overall, especially with Intimidate. These sets also work well with regular, non-mega heracross, though you should probably watch out for Stone Edge/Earthquake, which it usually runs.
