Deathrender
Artifact — Equipment
Equipped creature gets +2/+2.
Whenever equipped creature dies, you may put a creature card from your hand onto the battlefield and attach this Equipment to it.
Equip 
Martina Pilcerova
Conspiracy (CNS)
• #197Rulings
If the creature you put onto the battlefield can't be equipped by Deathrender (due to protection from artifacts, for example), the creature enters but Deathrender remains unattached.
(wotc • 2007-10-01)
Rulings
If the creature you put onto the battlefield can't be equipped by Deathrender (due to protection from artifacts, for example), the creature enters but Deathrender remains unattached.
(wotc • 2007-10-01)