Skull Kid, Misfit of Mischief

At the beginning of your upkeep, each opponent exiles a card at random from their hand
until end of turn.
At the beginning of your end step, each
opponent discards the top card of their library.
Whenever an opponent has less than four cards
in their hand, Skull Kid, Misfit of Mischief
gains shroud. (This creature can't be the target of
spells or abilities.)