Clockwork Keeper

Clockwork Keeper [NEW TEXT] You may pay [C] as an additional cost to play me. When you play me, if you paid the additional cost, draw 1. [OLD TEXT] As you play me, you may pay [C] as an additional cost. If you do, draw 1.

356.4.d.1. These discounts may be applied in any order as long as they are applied after component discounts. 356.4.e. If a discount applies a minimum cost, that minimum applies only to that discount. Example: Eager Apprentice says "While I'm at a battlefield, the Energy costs for spells you play is reduced by [1], to a minimum of [1]." A player who controls