"Mike Franchina" (3)
When Gulping Scraptrap enters the battlefield or dies, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Lifelink
Whenever another artifact enters the battlefield under your control, Mandible Justiciar gets +1/+1 until end of turn.
Flying, vigilance
Gatherer works better in the Companion app!