According to the Official Prerelease Guide , every color pair has a "signpost uncommon" that dictates its strategy: Color Pair Strategy Focus Tempo/Aggro using evasive creatures. Blue-Black (UB) Control deck focusing on card advantage and spirit tokens. Black-Red (BR) Firebending Pure aggro with direct damage and fast creatures. Red-Green (RG) 4+ Power Matters Midrange/Ramp using large creatures like Tiger-Dillo. Green-White (GW)
Midrange deck that scales power with the Ally creature type. Control-leaning deck using tokens as fodder. Deck-Building Tips avatar
: A Dimir (Blue-Black) anchor that generates 1/1 unblockable spirits whenever you draw your second card in a turn. According to the Official Prerelease Guide , every
: A flexible blue "Man-o'-War" effect that can bounce any nonland permanent and later become a creature. Red-Green (RG) 4+ Power Matters Midrange/Ramp using large
: A flexible 3/2 flier that can re-trigger your own "enters" abilities or remove a blocker.