M-Venusaur 52SpD spread

with:
4 SpA Togekiss Air Slash vs. 252 HP / 52 SpD Mega Venusaur: 84-98 (44.9 - 52.4%) -- 18% chance to 2HKO
252 SpA Mega Charizard Y Heat Wave vs. 252 HP / 52 SpD Thick Fat Mega Venusaur in Sun: 84-102 (44.9 - 54.5%) -- 37.5% chance to 2HKO
108+ SpA Rotom-H Overheat vs. 252 HP / 52 SpD Thick Fat Mega Venusaur: 78-92 (41.7 - 49.1%) -- guaranteed 3HKO
0 SpA Gothitelle Psychic vs. 252 HP / 0 SpD Mega Venusaur: 84-102 (44.9 - 54.5%) -- 37.5% chance to 2HKO
these 2:
252+ SpA Life Orb Kingdra Draco Meteor vs. 252 HP / 52 SpD Mega Venusaur: 105-125 (56.1 - 66.8%) -- guaranteed 2HKO
-2 252+ SpA Life Orb Kingdra Draco Meteor vs. 252 HP / 52 SpD Mega Venusaur: 55-64 (29.4 - 34.2%) -- 1.1% chance to 3HKO


without:
4 SpA Togekiss Air Slash vs. 252 HP / 0 SpD Mega Venusaur: 86-104 (45.9 - 55.6%) -- 69.1% chance to 2HKO
252 SpA Mega Charizard Y Heat Wave vs. 252 HP / 0 SpD Thick Fat Mega Venusaur in Sun: 92-110 (49.1 - 58.8%) -- 98.4% chance to 2HKO
108+ SpA Rotom-H Overheat vs. 252 HP / 0 SpD Thick Fat Mega Venusaur: 84-98 (44.9 - 52.4%) -- 18% chance to 2HKO
0 SpA Gothitelle Psychic vs. 252 HP / 52 SpD Mega Venusaur: 80-96 (42.7 - 51.3%) -- 2.7% chance to 2HKO

the following 2 combined are a roll to 2HKO with no EV's:
252+ SpA Life Orb Kingdra Draco Meteor vs. 252 HP / 0 SpD Mega Venusaur: 109-130 (58.2 - 69.5%) -- guaranteed 2HKO
-2 252+ SpA Life Orb Kingdra Draco Meteor vs. 252 HP / 0 SpD Mega Venusaur: 55-66 (29.4 - 35.2%) -- 9.3% chance to 3HKO

Useless once:
(Ignore how you literaly don't 2HKO it back)
252 SpA Life Orb Latios Psychic vs. 252 HP / 52 SpD Mega Venusaur: 166-198 (88.7 - 105.8%) -- 37.5% chance to OHKO
252 SpA Life Orb Latios Psychic vs. 252 HP / 0 SpD Mega Venusaur: 174-205 (93 - 109.6%) -- 62.5% chance to OHKO