There will be 12 in the standard pool (so far), 1/12 shuffle cards in your deck with Augmented Elekk, and on average you will break even on stats.
Playing spells for that doesn't seem bad for the 5/8 statline. If you play 1 1-mana spell you can probably average 8/11 for 8. The lowroll is an owl for 8 mana 7/9 stats. Good cheap option, great in arena.
Edit: counted according to hearthstone topdecks. and black cat rotates!!