Llorelock, Ill-Gotten Illusio-

Other artifacts you control gain hexproof.
Treasure tokens you control are 0/1 artifact
creatures in addition to their other types, and
their activated abilities cost an additional 2 life to
activate.
Llorelock, Ill-Gotten Illusionist gets -1/-0 for
each other artifact you control and gets +0/+1
for each artifact in your graveyard.