Timey-Wimey

Out of Time

When this enchantment enters, untap all creatures, then those creatures phase out until this enchantment leaves the battlefield. Put a time counter on this enchantment for each creature that phased out this way.
Vanishing (At the beginning of your upkeep, remove a time counter from this enchantment. When the last is removed, sacrifice it.)

Tasha Yar, Out of Time

Haste
When Tasha Yar dies, exile the top card of your library. Until the end of your next turn, you may play that card.
{2}{R}, Exile this card from your graveyard: Create a token that's a copy of this card. Sacrifice it at the beginning of the next end step. Activate only as a sorcery.

When Out of Time enters the battlefield, untap all creatures, then those creatures phase out until Out of Time leaves the battlefield. Put a time counter on Out of Time for each creature that phased out this way.
Vanishing (At the beginning of your upkeep, remove a time counter from this enchantment. When the last is removed, sacrifice it.)

When Out of Time enters the battlefield, untap all creatures, then those creatures phase out until Out of Time leaves the battlefield. Put a time counter on Out of Time for each creature that phased out this way.
Vanishing

When Out of Time enters the battlefield, untap all creatures, then phase them out until Out of Time leaves the battlefield. Put a time counter on Out of Time for each creature phased out this way.
Vanishing (At the beginning of your upkeep, remove a time counter from this enchantment. When the last is removed, sacrifice it.)