Playing on PC in brawl against a Tannuk, Steadfast Second deck and when Tannuk is played and at the beginning of every turn SOME cards in their hand flashes a warp animation showing me how many creatures or artifacts are in their hand. It is not every card in their hand just the creatures and artifacts that gain warp from Tannuk. I do not believe this is intended for me, the opponent of the Tannuk player to see.