Chromatic Sphere

(05/08/2026)
Chromatic Sphere’s ability is not a mana ability. Players can respond to it, and it can’t be activated in the middle of paying for a cost. A recent update to rule 605.1a has made any abilities that move cards to or from libraries no longer mana abilities.

(01/08/2008)
This is a mana ability, which means it can be activated as part of the process of casting a spell or activating another ability. If that happens you get the mana right away, but you don’t get to look at the drawn card until you have finished casting that spell or activating that ability.