1. The Karrablast has an aweful nature (careful), so I gave you 2 credits in my thread.
2. Edit: The Turtle has 252 HP/252 Sp. D, and 4 Def. It DOES NOT have 252 speed. (I can clone it again if you'd like, but mine has 0 speed EVs so I suspect yours does as well.)
* note: It's nature is Careful, so again it's not a very good nature for an attacker IMO.
I can, in theory, EV a 252 attack, 252 sp. D turtle for you if you'd like.
However, alternatively how about this: I'll EV a Darumaka (Adamant or Jolly - your choice) and the male (intimidate) Sandile for you. I think 252 Attack/252 Speed/4 HPorDeforSp.D would be appropriate here, and would give you the physical attackers you're no doubt looking for.
VM me if this is okay.