Nailsmith

Vigilance
{4}{t} Target equipment becomes a nail in addition to its
other types. During each of your upkeeps, it will level up
to a
max of 3 levels.
Level 1, Coiled Nail, +1/+1
Level 2, Channeled Nail, +2/+2, Vigilance
Level 3, Pure Nail, +3/+3, Trample, Vigilance, Lifelink, Reach, Deathtouch, and Double Strike.