mtg commander deck kamigawa O-Kagachi, Vengeful Kami SPIRIT TRIBAL Magic Custom Comma – CommanderComplete Neon Dynasty Commander Upgrade Guide:

What's inside: - 12 game cards per pack - Supplied in a protective display sleeve, ideal for collectors and for hanging retail - A mix of rarities with the chance of foils, Legendary and Enchanted cards - Ravensburger quality printing and card stock Featured theme and chase: The Aladdin and Agrabah themed expansion, featuring Jafar, Genie, Iago and Jasmine

The answer is yes, if you get in the archetype early enough

Its time to ping-ping-ping-ping-ping to your hearts content

So far, I have never come across him as a commander in Goblin tribe decks I have played against

If the card you tutor up is four mana value or less and you bargained the spell, you can choose to cast it from exile FOR FREE