Rate my team! (Be nice, I'm still kinda new to this XD)

So I've been using this team for a little bit now, but I'm starting to notice it has some problems, especially with Bullet Punching Scizors, which is pretty much all of them XD. My team right now is:

Ninjask @ Leftovers
Jolly Nature
Speed Boost
EV: 176 HP / 252 Atk / 80 Spe

Substitute
Swords Dance
Baton Pass
X-Scissor

Gallade @ Life Orb
Jolly Nature
Inner Focus
EV: 4 HP / 252 Atk / 252 Spe

Swords Dance
Close Combat
Ice Punch
Psycho Cut

Gliscor @ Leftovers
Impish Nature
Sand Veil
EV: 252 HP / 40 Def / 216 Spe

Stealth Rock
Earthquake
Roost
U-Turn

Tentacruel @ Leftovers
Calm Nature
Liquid Ooze
EV: 252 HP / 120 Def / 136 SpD

Toxic Spikes
Surf
Rapid Spin
Sludge Bomb

Weavile @ Choice Band
Jolly Nature
Pressure
EV: 40 HP / 252 Atk / 216 Spe

Pursuit
Ice Shard
Low Kick
Night Slash

And Finally, the tweak I just made to help deal with Scizors:

Heatran @ life orb
Naive Nature
Flash Fire
EV: 4 Atk / 252 SpA / 252 Spe

Flamethrower
Earth Power
Hidden Power Grass
Explosion

The idea is to have Ninjask Baton Pass speed and attack to Gallade and then have him sweep from there. Gliscor is acting as a physical wall and stealth rock user, while Tentacruel takes special hits and lays down Toxic Spikes if the gets the chance. Weavile is a revenge killer and can deal with Dragons quite well.

What do you guys think?

Taunt > Passing Ninjask. You get awfully screwed if someone Taunts you, which most leads run. Maybe you could just go Swords Dance + Sash and, even if they taunt you, manage to get an SD and hope that they're of the type that you can land a solid hit on with X-Scissor (ie. Not Aero, Heatran)...or, you could switch Ninjask lower down your team so you can get it out on something you can set up on (ie. anything without phazing/priority).

Superpower or Brick Break > Low Kick on Weavile and probably replace Night Slash, and put Fire Blast on Heatran, because the extra power helps.

Keep Jolly nature on Gallade because you are not running Shadow Sneak. Your Weavile set is fine if you are going for the revenge killing/check set. The standard is Pursuit, Ice Shard, Low Kick and your choice between Ice Punch and Night Slash.

If you are passing SD's ad Speed Boosts to Gallade then don't bother running SD on that too (perhaps Night Slash or Shadow Sneak). You should be at +1 or 2 Speed and Attack by then you are fine to sweep. Scizor rains on your parade though.

I figured if Ninjask had Substitute, he could hopefully pass one off to Gallade, so he doesn't get hit on the switch. Protect and Sash is a good idea though, I'll have to give that a try.

The reason Gallade still has SD on his set is so that just in case Ninjask can't pass his boosts for some reason, then Gallade can find a moment to give himself an SD. But I'm gonna try replacing it with Shadow Sneak and giving him an Adamant nature.

Is the extra power of Fire Blast worth the chance to miss on Heatran? I was just worried about him missing at a crucial moment, so I gave him Flamethrower.

Thanks so much for all the help!