Tezzeret, Betrayer of Flesh
Legendary Planeswalker - Tezzeret | Loyalty: 4 (CMC 4)
The first activated ability of an artifact you activate each turn costs less to activate.
+1: Draw two cards. Then discard two cards unless you discard an artifact card.
-2: Target artifact becomes an artifact creature. If it isn't a Vehicle, it has base power and toughness 4/4.
-6: You get an emblem with "Whenever an artifact you control becomes tapped, draw a card."