protection from everything mtg cards Rune of Protection: Lands, Artifacts, Green, Red, Black, Blue, and White Urza's Saga (1998). Who remembers the old school days of MtG, where janky white decks, the worst color back then your life total cant change and you gain protection from everything MTG Teferi's Protection (foil etched)

Whats cool about both of these is that the only limit on using them is your mana, and Elf decks are incredibly good at generating mana

There are so many cards that either look incredible by themselves or look like they should be amazing in certain decks, but when you actually play with them they're just ok

Plenty of players still run a colorless commander like Karn, Silver Golem or Traxos, Scourge of Kroog, but having mana sources matters even more with artifacts-matter partner commanders in all colors like my favorite, Keskit, the Flesh Sculptor, and commanders in three or more colors like Sharuum the Hegemon

Valley Floodcaller is another very interesting card for decks including blue, even though it only allows you to break timing restrictions for noncreature spells