Mushroom Kingdom Adventure

When Mushroom Kingdom Adventure enters the battlefield, all cards opponents control, and that
are in their hand, go into their deck. All
opponents commanders come into the field
tapped. Commanders toughness equal their controllers life points. Damage to commanders
also deal equal damage to their controllers. Controller of this card finds a creature card from
their deck and puts it into the battlefield as a
Boss. This card cannot be targeted the entire
game.