@Meddler: Can we give a change for Kog'Maw similar to the last Kayle change?

When Koggie's W is down and on cooldown, he's (as Tahm Kench would put it) like a roofless mansion - impressively useless. Well, okay, maybe not to that extent, but when Koggie doesn't have Bio-Arcane Barrage available, he won't even risk trying to attack someone.

To alleviate this a bit, can Kog get part of BAB's bonus magic damage as a passive? Or perhaps a passive that increases his base attack range (as unlikely as it would be)? Or would this make Koggie broken?