The minimum for the Color Identity Challenge is 32. If (God forbid) purple ever becomes a reality, it will become 64.
if phrple ever bcame a color (which 99.99...% chance it will not. I would uild a deck a deck kf pretty much every (phrple) color combination off the bat.
Purple would ruin the color pie though.
UB Vela the Night-Clad BUDecklist
WBG Ghave, Guru of Spores GBW
WUBRGThe Ur-DragonWUBRGDecklist
There is guy in this forum who has 32 edh decks (one of of each color combination)
UB Vela the Night-Clad BUDecklist
WBG Ghave, Guru of Spores GBW
WUBRGThe Ur-DragonWUBRGDecklist