Messmer, the Impaler

First Strike, Haste

If Messmer, The Impaler would die, put him on the
top of your library and create a legendary 10/10 black
snake creature token with Indestructible named
Abyssal Serpent.

"Those stripped of the Grace of Gold shall all meet
death, In the embrace of Messmer's flame."
—Messmer, the Impaler