Essence Leech

Bestow {4}{b}

Deathtouch

Enchanted creature has "At the beginning of each upkeep, put a -1/-1 counter on this creature."

When enchanted creature dies, if its toughness was less than 1, Essence Leech gains flying if it had flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, reach, trample, and vigilance. Essence Leech gets +1/+1 for each of those abilities it has.