Enchant permanent
(Target a(n) permanent as you cast this. This card enters the battlefield attached to that permanent.)
When Rune of Mortality enters the battlefield, draw a card.
As long as enchanted permanent is a creature, it has
deathtouch (Any amount of damage this deals to a creature is enough to destroy it.).
As long as enchanted permanent is an Equipment, it has "Equipped creature has
deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)."