Paris, Generous Friend

When Paris, Generous Friend enters the
battlefield choose target player as a Friend.
All creatures controlled by your Friend and all
other creatures you control get +1/+1.
{t}: Create a 0/1 White Nan creature token and
give a target creature you control and a target
creature you don't control each +1/+1 until end
of turn, at the end of the next turn exile Nan.