How about for low level pokes without priority moves?
Well, if only there was a focus sash in-game. There's a focus band though, but its all about the chances. What are focus band and sash? They are item's that will/can leave your pokes with 1 hp after taking a hit.
Which means, your method will not only work for low level pokes with priority moves but also work for low level pokes with Sturdy ability.