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URW Prowess : Master both the art of combat and the ways of magic with an array of inexpensive spells to empower your prowess creatures

Combine that with a color identity that includes one of the best cEDH colors (black, for tutors), and its no wonder this cards a staple at the highest power levels

Szarel, Genesis Shepherd lets you play lands from your graveyard, and there are a ton of landfall effects that play into that, too

Shiko and Narset, Unified is interesting as a spellslinger deck since you want to cast no more than two spells a turn rather than as many as you can like most other spellslinger decks

Rakdoss Return Ive touched on this a few times, but the combination of a discard effect and pressure on your opponents life total is highly effective