QOL Idea/Fix for Skarner and Zac

Zac: So earlier today I was thinking about Zac for some reason, something about how I'd play him a lot (because his personality is awesome and his kit is fun) if his blobs weren't so damn infuriating. Then I thought up an idea. What if Zac's blobs behaved like Draven axes, in that they predict Zac's movement (making them easier to pick up)? That way you can continue to chase your opponent without worrying about your blob going in the opposite direction.

Skarner: I don't know if this behavior is intended (and if it is, why?) but if Skarner casts impale he cannot press a Thresh lantern. I feel like he should be able to (not exactly game-breaking, Kalista's Ultimate allows for it so I don't see why Thresh lantern wouldn't). Besides, it would probably bring a lot of fun to both Skarner players and Thresh players (and if both players coordinate to achieve this, I don't see why it would be unfair).