Historical Rules · 17 April 2020
Rule 702.62a
Official source text from the 17 April 2020 Rules release
Vanishing is a keyword that represents three abilities. “Vanishing N” means “This permanent enters the battlefield with N time counters on it,” “At the beginning of your upkeep, if this permanent has a time counter on it, remove a time counter from it,” and “When the last time counter is removed from this permanent, sacrifice it.”