Give Mamoswine a Life Orb or a Nevermeltice if LO isn't an option. If possible, swap Stone Edge with Superpower. If you can't, Stone Edge is ok.
Your Goodra appears to be trying to do both the special tank and specially defensive sets at the same time, which makes it less effective. So pick one:
-Special Tank Goodra:
Goodra w/Assault Vest
Ability: Gooey
Nature: Modest
EVs: 252 HP, 252 Sp.attack, 4 Defense
Moves: Draco Meteor/Dragon Pulse, Flamethrower, Sludge Bomb/Wave, Thunderbolt/Focus Blast
-Specially Defensive:
Goodra w/Leftovers or Assault Vest
Nature: Calm/Sassy
Ability: Sap Sipper/Gooey
EVs: 248 HP, 252 Sp.Defense, 8 Sp.Attack
Moves: Dragon Pulse, Flamethrower, Thunderbolt/Power Whip, Toxic/Dragon Tail
With the assault vest, his fairy weakness is nullified, because there are no usable physical fairy moves.
Two words:
Play Rough
And Paraflinch Togekiss's EV spread should be either: 252 HP, 248 Defense, 8 Sp.Defense or 252 HP, 248 Sp.Defense, 8 Defense depending on which side you wanna have it take hits better from, physical or special. Speed EVs are not needed because of the bulk and paralysis from T-wave. Sp.Attack EVs are only needed on the Nastly Plot set, since with Paraflinch the opposing Pokemon is being flinched or paralyzed all the time.