Talk:Purgatory Knights, Death Sickle "Calvary"/@comment-24612605-20160703144716/@comment-25600444-20160703152211

They made an illegal move.

All the monsters, at the time of casting, were elligible for the destruction of this card. They are all destroyed at the same time.

There's no "Pick one, then the next one" like with Champion Asmodai. Hence there's no period in which Sickle goes back to being a Size 3 during the effect of Knight's Counter.