Tezzeret, Betrayer of Flesh

'The first activated ability of an artifact you activate each turn costs {2} 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."