Mary Soe, Redeemed Big-Wig

Whenever you Mystify a creature you may have
Mary Soe become a copy of that creature until
end of turn.
Whenever another gatekeeper enters the
battlefield under your control create a tapped
copy of it that is an amulet token.(It is not a
creature)
Sacrifice any number of tokens, {g/u}{g/u}, {t}: Surveil
X where X is the number of tokens sacrificed this
way.