Lotus Blossom

Slow-burning ritual on a stick, and the design tension is entirely in the word "slow." The petal counter accrues on your upkeep, so every turn you wait widens the eventual payout, but the artifact does nothing until you cash it in. That asymmetry is the whole card: a battery that charges visibly, in full view of an opponent who can read exactly how much mana you are saving up and exactly when sacrificing it becomes worth a counterspell or a Naturalize. The any-one-color output is what ages well, because the stored mana is unrestricted in color, making the eventual burst a fixer for a spell your deck could not otherwise cast on curve. Where Dark Ritual or Lotus Petal commits to immediacy, Lotus Blossom commits to patience: it asks you to defend a fragile artifact across several turns for a deferred payoff, and it punishes the impatient by handing the smallest, least useful bursts to anyone who cracks it early. The closer the card sits to its namesake Black Lotus, the more it reveals the cost of that comparison: the original was three mana the turn it landed, no counters, no wait. This is the version balanced by time rather than restriction, and time is a tax artifacts are uniquely bad at paying.