Odds are Siege Rhino is not going to be good friends with Eldrazi mana
While myr may not be the physically strongest creature type, they have a lot of utility
That's the magic number for Bahamut and Diamond Weapon
Only a few extremely pushed Lord of the Rings cards see play (and surely The One Ring will hit the MTG banlist anytime now
Throw in some recursion or cards like Insidious Roots, Agathas Soul Cauldron and Willow Geist, and youll have a mighty fine brew
1 Urza, Lord High Artificer Works Well With Any Artifact Build 9,488 Decks on EDHrec.com Urza, Lord High Artificer is the most popular mono-blue commander, and Commander players should be aware that playing such a deck will often make them a huge target, especially in more casual groups