Bloodlord's Mask

Whenever another player loses life, put a blood counter on Bloodlord's Mask.
Equipped creature gets +1/+1 for each blood
counter on Bloodlord's Mask and has menace.
{b}{r}, Remove a blood counter from Bloodlord's
Mask: You gain 1 life.
Equip —Pay 1 life for each blood counter on
Bloodlord's Mask