Apart from the 6 basic lands, a Commander deck may not contain double cards and in the choice of cards for the deck you are also limited to the colors of your Commander
(Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays 3 life.) Magecraft Whenever you cast or copy an instant or sorcery spell, create a 1/1 black and green Pest creature token with "When this token dies, you gain 1 life." WardPay 3 life
My deck is a more controlling build of Aurelia that seeks to spend time setting up before turning the corner quickly to eliminate players in the mid-to-late game
Slowly teased over the course of the Mirrodin block, with the Sword and Shield of Kaldra appearing in Mirrodin and Darksteel, respectively, the final reveal of Kaldra that came with the Helm was exciting indeed
Every single color had three mana "Grey Ogres" (2/2's for three mana) and four mana "Hill Giants" (3/3's for four mana)