Tony Stark, G.B.P.P.

Artifact spells you control cost {1} less to cast.

At the beginning of your end step, create a number
of tapped treasure tokens equal to the number of
non-token artifacts you control.

Sacrifice two treasures: Tony Stark, G.B.P.P. gains Hexproof and Indestructible until end of turn.
—
"Take away the suit and I'll tell you what I am."