mtg jodah commander deck Eldrazi - Jodah, Archmage Eternal Legendary creatures you control get +X/+X where X is the number of legendary creatures you control Jodah, the Unifier (showcase)

Kefka's Tower / Bolas's Citadel (FIC) $15 The only card listed here above $15 that wasn't originally on this list is the Kefka's Tower reskin of Bolas's Citadel, which is a testament to just how dangerous this card is in Commander (and even some Vintage Cubes thanks to Tinker!)

I urge you to do your own research, either through looking at your commanders page on EDHREC, or searching on Scryfall for the right cards for your deck

If you have a box of commons and uncommons lying around, throw it up on eBay for $10-20 and see if anything sticks

Near mint copies of Zirilan go for about $10, but as far as Dragon Typal is concerned, thats a pretty cheap number

Regardless, any mana rocks you mill over with Terra are fair game to recast at low cost