Runeglaive Nasus

So I was trying out in a custom game to see if I could do ap crits like with , and it worked fine except with siphoning strike (Q). What I found was happening with his Q is that instead of reading all magic damage after was completed, it would still read 2 physical damage in addition to the rest of the magic damage. The physical damage would then have the critical mark next to it, and receive no damage change while the magic damage portion would receive no change as well. I would really like to see this fixed and to see if this would change how Nasus is played. Thanks and I hope this issue gets resolved soon!