Niriveh Grimblade

Hollow - You may hollow Niriveh Grimblade as it attacks. (A hollowed creature is sacrificed at the beginning of the next end step.)
Niriveh Grimblade has deathtouch and menace as long as it's hollowed.
"The Nireveh were always a curious folk, poking their noses in our ancient tombs. May our elders see what has become of their rotten corpses."
-Narkha, Nadha Elder