most metal mtg cards Commander Proxies - Thick Aluminum Card - Full Art Proxy - Magic Proxies Metal, 18 cards | Magic:

Specifically, they are only on the Japanese borderless anime cards included in the Enchanting Tales bonus sheet

That condition can be easily achieved in commander with a creature and something that gives lands every basic land type, like Prismatic Omen

Contents: 15 Magic: The Gathering cards plus 1 Token or advertisement card

Rakdos, Lord of Riots Rakdos, Lord of Riots is an excellent Rakdos commander if you like to cast big colorless creatures, like the Eldrazi battlecruisers

For instance, the version of the card recently printed in MTG Lord of the Rings has gone from $0.50 to $6, a 1100% increase, and this version from the MTG Secret Lair Psychedelic Show has gone up by $20, from $8.50 to $30