It's OK but too troublesome to use as a stage 2...
Body is somehow useful but it's limited to the Active, so then benched ones can still evolve, and it has to be active to activate its effect.
First attack is good for dragging random basics or stage 1's (that you want to prevent evolving) out of the bench for a 1HKO on the next turn but it's too much trouble, because Feint Attack and Overrun etc. work better than that.
The second attack is too nondescript...
6.5/10 - Good passive, but too troublesome to put it to its full effect.