Fading
From MTG Salvation Wiki
Fading is a keyword ability that limits the number of turns a permanent is in play. During each of its controller's upkeeps, that player removes one fade counter from the permanent. If the player cannot remove a fade counter, he or she must sacrifice the permanent.
All tournament-legal cards with Fading were printed in the Nemesis set.
It is unlikely that any new tournament legal cards with fading will be printed. Vanishing is similar to fading. However, it plays much more like suspend does. The card starts out with a number of time counters on it, an ability triggers at the beginning of your upkeep that has you remove a time counter, and an ability triggers when you remove the last time counter that has you do something with that card.
From the Comprehensive Rules:
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