Mulligan for plate, put plate on unit (preferably flier), fling unit at opponent's face.
It's unbelievable how much of a bomb
Deepforged Plate is in Limited. Combine it with cards like
Silverwing Familiar for evasion, or any of the relatively big body units in this deck, and it's just over 9 times out of 10. There are other weapons in here for good measure, so you're pushing damage through either way. But your win rate takes a big ol' dip when you can't draw or play Deepforged Plate, so definitely mulligan for it.
In retrospect,
Righteous Fury was total overkill that really accomplished nothing and was a dead card most of the time. Could probably stand to remove it. If I was gonna play my matches again and keep it, I'd be more liberal with playing it rather than waiting until I had a beefy unit via attachments.