Twisted Experiment

Enchant two creatures. One has First Strike if the other has First strike. The same is true for Vigilance, Double Strike, Flying, Infect, Deathtouch, Hexproof, Indestructible, Reach, Defender, Haste, Intimidate, Landwalk, Lifelink and Trample. These two creatures can only attack or block together.
We have both agreed, whatever happens tonight, we will never be the same again.
-Lab Notes.