Monster Skaab Experiment

Menace
When Monster Skaab Experiment enters the
battlefield, put the top four cards of your library
into your graveyard.
Exile two creature cards from your graveyard,
{u}{b}{r}: Progress (Sacrifice this creature, search
your Library for the Monster Mashed Dragon, put it
onto the battlefield, and shuffle your Library.)
"For an Master experiment like this there is only
one real question, where do you get the parts?"
- Ludivec, Necro-Alchemist.