The Perfect Specimen

Create a colorless experiment artifact creature token that is a copy of the creature with the highest combined power and toughness, it has
the card text of the creature with the highest converted mana cost in addition to its own card text. Destroy the creatures chosen by this card.
(If tied chose among the highest at random.)
"Excellent, prepare the apparatus and I will take it upon myself to proceed with examination." - Gregar, Phyrexia's Perfecter