Any Advice on my Team?

[Digitatum]

Hey, So I have 2 glass cannons (Hawlucha and Scizor), a damaging wall (Miltank), and a Special Damaging wall (Vileplume), and a Special Attacker (Gardevoir). I need to find a sturdy mixed attacker to really tie the team together. Any advice? I am trying to avoid Lucario because he is overused as a mixed attacker. Thanks for your help and I will respond as soon as I can to any posts.

 

[Howmander]

Magmortar, Salamence or a Belly Drum+Unburden Slurpuff

 

[Nah]

I'm gonna put this in BTB since I think you're going for a more competitive battling team here. This isn't specifically X/Y related anyway.

Moves.

Another good mixed attacker you can consider is Infernape. Aegislash can also run a mixed set.

....but people use mixed Lucario?

 

[Polar Spectrum]

Um, just glancing at your team, does your miltank have thick fat? If not, I'd definitely consider something that has a fire resist or ability that gives it immunity. If your Miltank is Thick Fat, my next suggestion would beeee - I'd consider something that can hit ghosts reliably.