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I've always tried to make a decent deck utilizing tempered steel. This is what I've been working on lately. Inspired by magicaidsyoutube. I have all the main deck but need help with sideboard.
Pretty simple, drop cheap artifact creatures and buff with tempered steel, steel overseer and cranial plating. Cheat in a free card with srams expertise and win.
This deck has been viewed 927 times.
I would say Relic of Progenitus would be a nice addition to sideboard for graveyard hate and some draw over Rest in Peace. Would help out with Mox Opal or Etched Champion's metalcraft and also Court Homunculus or Cranial Plating.For possibly maindeck, Myrsmith comes to mind to free up extra mana to play 1/1 myrs. Also, Hangarback Walker would be great with a Steel Overseer or two in play to beef up.
Look into Shrine of the Loyal Legions and Animation Module they might be useful in this deck.
Sorry for late response, thanks for suggestions/likes guys. I'm undecided on which is better rip or relic, maybe relic in this. Hangarback is a great suggestion. Seen shrine of loyal legions in similar decks, might have to get some and playtest. Thanks again