Janjucetus

Annihilator 1 (Whenever this creature attacks, defending player sacrifices one permanent.)
Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)
The only known fossil of Janjucetus was found near the Victorian township of Jan Juc.