smeargle pokemon card price #209 Prices | Fusion Strike This attack does 30 more damage for each type of basic Energy you reveal in this way Smeargle Reverse - Silver Tempest

With Mono-White Humans and its variants running amok in Standard, you have to be able to block, hopefully with some incremental value along the way

I can see this warlock putting in work in a lot of different formats and decks

Heliod, God of the Sun: Solely here for the ability that gives our creatures vigilance, in the unlikely circumstance that we have extra mana to sink, I suppose well get a little bonus

This makes it great in blink decks where you can repeatedly exile your own things for enter-the-battlefield value

He may not be the best way to run an aggro artifact deck in Boros, but he is definitely the BEST way