At the beginning of your upkeep, you may put a petal counter on Lotus Blossom. , Sacrifice Lotus Blossom: Add X mana of any one color to your mana pool, where X is the number of petal counters on Lotus Blossom.
Official Rulings for Lotus Blossom
10/4/2004 : Adding a counter is optional. If you forget to add one during your upkeep, you cannot back up and add one later.
Comments on Lotus Blossom
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