No matter what color the creature is, no matter if its an artifact or not, the creature will die (with or without regenerate)
Jin-Gitaxias, Core Augur This card is one that really inhibits other players' ability to play the game - And that's why it's on the list
Elsha is another great commander for a spell-heavy deck, and our friends at the Command Zone podcast have some recommendations for how to build around her
Editors note: Its certainly a card whose presence is always welcome in my Vintage Cube drafts
Custom Handmade Foundations Jumpstart Commanders Uncommon Full Art proxies made from real Magic the Gathering card with many different alternated arts available for purchase.
If we're looking to have our first spell each turn be big, and we're also looking to have a big creature enter the battlefield and turn that creature generate mana through Alena, Purphoros, Bronze Blooded is a natural fit