Daxsur, the Bloodcleaver

Menace
When Daxsur enters the battlefield, you may
pay {1}{b}{r}{r}. If you do, search your library
and/or graveyard for a card named Bloodcleave
and put it onto the battlefield attached to
Daxsur. If you searched your library this way,
shuffle it.
Whenever a creature dies, put a +1/+1 counter
on Daxsur.