Yeah so, i've been using this alot lately and it rarely fails to sweep.
It really deserves it's own set, I can provide logs if it's necessary.
http://www.smogon.com/dp/pokemon/porygon2
[SET]
name: Agility
move 1: Tri-Attack
move 2: Thunderbolt
move 3: Ice Beam
move 4: Agility
item: Life...