[GAMEPLAY] Kalista can AA during the GA revive animation. While staying untargetable.

Kalista can auto-attack during her Guardian Angel reanimation animation and is untargetable while doing so.

During a very long game (1hour) almost everyone had a GA and after Graves and Vel'koz killed Kalista while her GA was up they got destroyed while waiting for her to "revive" due to the fact that she was Auto-Attacking while being untargetable.