Sceptile's def and HP are average, and Ice Shard has a measly amount of power. I suppose it helps I have a cursory knowledge of all but the competitively weakest UU and NU pokemon (Spinda), and I have a hand written notebook of %90+ of the NU and UU's competitively viable moves, and max stats. Even true "horrid" physical defense such as Sharpedo's does not make the pokemon vulnerable to the weakest of moves like non STAB Ice Shard.
Do you consider average stats to be "horrid"? I consider average to be an opportunity and a benefit, and truly low stats to be a means of deceiving my opponent.