A little change to Kalista I'd apreciate.

So I was playing ARAM and rolled Nasus and after attempting to last hit minions, I noticed that If I triggered the mark and killed the minion, the bonus damage would send the kill credit to Kalista, denying me the stack. I'm not asking to stop the mark from sending the gold to Kalista,, but could champions like Nasus and Garen still get their stacks? And items like Jaurim's Fist?