Ashiok, In Whispers

: Ashiok can't be attacked unless you own it. At the beginning of your end step, flip a coin. If you lose the flip, exile all cards from your hand.
+3: Target opponent gains control of Ashiok. If that player owns Ashiok, and if you have another opponent, put three loyalty counters on it.
-16: Exile all cards from target player's library. Only Ashiok's owner may activate this ability, and they may do so as if they controlled it.