Cursed Mirror

Defender
When a creature of power 5 or less is blocked by
Cursed Mirror, attacking creature is exiled under
this card until it leaves the battlefield. If Cursed
Mirror has an exiled card under it, it can no
longer block and becomes an artifact. A Mirror
Copy token of the exiled creature is made that
has the power of the exiled creature and a
toughness of 5. If the token is destroyed Cursed
mirror becomes a creature again and exiled card
is returned to it's owner's battlefield.