Sorry, but I really don't think this lead works particularly well. The issue is that it gives two turns to pretty much every single lead, with the notable exception of Swampert. Seriously - here is a list of matchups vs top 15 leads, not necessarily in order:
Azelf - Taunt + SR, or SR + Explosion and you might get SR up - best case scenario. DS Versions laugh at you.
Aerodactyl - Taunt + SR - what it's meant to do.
Metagross - SR + Explosion, or two meteor mashes.
Swampert - yay - good matchup. Unlikely to stay in.
Jirachi - reasonable matchup. Can 3HKO with Iron Head though, and might survive EQ.
Machamp - Ice punch OHKOes you.
Infernape - Can set up SR. If you choose to do the same you get 2HKOed by Fire Blast.
Tyranitar - decent matchup
Roserade - sleep powder - you lose.
Heatran - Good chance to survive EQ. Always sets up SR, and can explode if it survives. Specs OHKOes you.
Hippowdon - very good matchup, though it will likely get SR up regardless
Uxie - pretty awful matchup - it walls you pretty much and can do whatever it wants.
Smeargle - Spore
Gliscor - Leaf Storm misses a 2HKO. It taunts + SRs, and can heal up in your face.
Compare this to something like a Swampert, Heatran, Empoleon or Metagross of your own and this really doesn't seem too impressive (and Swampert is hugely overrated.) I also cannot imagine it having much utility beyond its lead matchup, given that its defenses aren't great with no investment, and its speed terrible. Even with mixed attacking, its not going to break many walls, given that it can't even beat a Blissey one to one.
Sorry.
Delko - any lead that doesn't set up SR should expect to KO the opponent without being hit. Torterra does not manage this. Take a look at something like Empoleon, a fantastic lead that is hardly used. It can set up SR on bulky leads, and will KO suicide leads without being hit or taunted thanks to Aqua Jet. Focus sash is the problem for this lead - it has to waste a whole turn breaking them.