The power boost is welcome since the commander damage difference between six and seven power is quite significant
But even then, it only triggers once a turn
Metallic Mastery, Seething Song, Song of Blood, Songs of the Damned, Apocalypse, All of the death cards like Certain Death, Death Baron, Death Cloud, Death Speakers, Death Stroke, Death Watch, Death Wind,Death Wish
Then you can tap him with three colored mana and one generic and sacrifice two artifact tokens and you exile an artifact or dork from your graveyard
In addition, if I want to go face, the draw a card effect is usually irrelevant because Id want to either be finishing off my opponent or already have lethal in hand
Rather, this excels as a set-up piece: You'll often hit a board wipe or ramp or a synergy piece, plus create a surge of Treasure