Treasonous Knight

If you are targeted by the King's ability 3 or more
times during the game, reveal Treasonous Knight.
Whenever a source the King controls causes one
or more permanents you control to leave the
battlefield, if Treasonous Knight is face down,
secretly put a treason counter on it.
When there are 3 or more treason counters on
Treasonous Knight, reveal it. If you do, Exile
Treasonous Knight and you become The Traitor.