MirrorMaster Isadar

Spells with scry you cast cost {1} less to cast.
Whenever you scry, you may pay {3}. If you do,
create a token that's a copy of target creature you control, except it's an Illusion in addition to its
other types. It gains "At the beginning of the
next end step, or when this creature becomes the target of a spell or ability, sacrifice it."