Aendorn, knight of the mirror

Hexproof, vigilance.
At the beginning of each opponents pre-combat
step create a blue illusion creature token that is a
copy of a creature you control with "Sacrifice
this creature at the beginning of your opponents
end step."
It is said that Aendorn was saved from the wilds by
the spirits of the mirror lake when he was young
taking its name upon his knighthood.