regenerate mtg cards Goblin Artisans: Target Mechanic (The next time that creature would be destroyed this turn Rules Text: Regenerate target, 60

You'll need to get a lot of mana for it to be really explosive, but once you're done, it can set up practically every graveyard effect

He generates card advantage through combat, as well as reducing the costs of the creatures he finds by giving them undaunted

Consecrated Sphinx/Mind's Eye [one_fourth stack="responsive"] [/one_fourth] [one_fourth_last stack="responsive"] [/one_fourth_last] Consecrated Sphinx is one of the best card draw engines in the game, and Mind's Eye is a worse version of it but it is able to be slotted into any colour of deck

As for the new Tarkir: Dragonstorm cards you could add to the main deck of other Commander decks, Deceptive Frostkite stands out to me