Nature or Ivs ?
I have two tailows with Boomburst...a naive male one with no flawless evs and a female one with a neutral nature and 3 Flawless IVs...which one is better?
Well, if you're just playing through the game, the one with the 3 ivs and neutral nature is probably better. If you want to use it for battling other people, you'll want a good nature /and/ ivs, so breeding is the best option.
Hey everyone! I'm having a really hard time getting ahold of the Master Rank Contest Ribbon for my Masquerain. I have the right nature, it's a Special Attack one, Quiet and I have completed all other ranks except Master Rank with this Pokemon, and I'm determined to beat Master Rank with my Masquerain. Getting to the point, I haven't seen any guides online that tell you which moveset and order of that set would work best in the Master Rank. Can anyone help me with a Moveset and Move Order for my Masquerain?

I really want that ribbon and I'm downright getting frustrated to be honest, so if I could get help from one of you, I'd really appreciate that.
Edit: It's for Beauty Rank
Oh it's too bad it's for Beauty, my contest Masquerain is my Cute contest member. So I can't really help with that, but last night I beat Beauty Master rank pretty easily with my Roselia, move set: Growth, Magical Leaf, Round, and Giga Drain. So if you just want to beat it to beat it, maybe try that out. Or if you're dead set on beating it with masquerain, just in general, i've enjoyed having movesets for my contest pokemon that have a good balance between a general good appeal move, sometimes an order switching move (roar, endure, quick attack, etc) a move that works well when it's first (or last), and at least 1 jamming move for if you need to get out of a sticky situation (aka if one of your opponents gets the 5* super appeal).
For example, with that Roselia set, Growth adds a pumped up star, magical leaf gives really good appeal if you're in first place (which is where you want to be most of the time) and also, if you have your pokeblocks maxed out is a great first turn option since you'll usually be first. Round is useful for beauty in general since it works well if the pokemon before you used a beauty attack, and giga drain in my jamming move. Also isn't a bad idea to have a move of a type that lowers the 5* appeal gauge as well. so that if you know you can't hit it, you can lower it to make it harder for your opponent to get instead. Like for example, cute moves don't go well in cool contests and lower the bar. If the star in like 2* away from getting filled and you're up first, using your cute move in that situation would lower the bar so hopefully someone else doesn't get it, and you have another chance next turn.