502.31. Affinity

502.31a Affinity is a static ability that functions while the spell is on the stack. "Affinity for [text]" means "This spell costs you less to play for each [text] you control."

502.31b The affinity ability reduces only generic mana costs; it doesn't reduce how much colored mana you have to pay for a spell.

502.31c If a spell has multiple instances of affinity, each of them applies.


Affinity just lowers the cost you pay to play a spell, not its actual cmc.