Barrin's Codex

{4} · Artifact — Book

At the beginning of your upkeep, you may put a page counter on this artifact. {4}, {T}, Sacrifice this artifact: Draw X cards, where X is the number of page counters on this artifact.

Motor: se resuelve a mano

Rulings (1)

Adding a counter is optional. If you forget to add one during your upkeep, you cannot back up and add one later.
Wizards of the Coast · 2004-10-04