Charade, Soul Edge Incarnate

When Charade, Soul Edge Incarnate enters the battlefield as a copy of target creature except it's
a legendary avatar named Charade, Soul Edge Incarnate in addition to its other creature types
with "At the beginning of each upkeep if the
creature Charade, Soul Edge incarnate is a copy
of is on the battlefield Charade, Soul Edge
incarnate gains +2/+0 until end of turn. If not,
then each player puts the top card of their library
into their graveyard."