red and blue cards mtg Sauron, the Dark Lord Red-Blue Spells (Commander / EDH

Honorable mentions Top Blue Enchantments that Draw Blue may not have as many enchantments matter cards as some other colors, but that doesnt stop it from having some of the best card-drawing enchantments in the business

Then add whatever support pieces you might need for your strategy

It is a Synth artifact creature, which can play into artifact strategies that care about how many you control

In general, I would look at these two factors when looking to include cards not of your tribe's creature type: Is this creature so strong that it, on its own, is generally stronger than my tribal creatures when they are receiving bonuses and/or empowering my other cards

These types of decks are typically called Cheerios, and have seen play in competitive formats in the games history

Signets or Talisman take your pick