Double Time

Ultimate Spell • Cost: 6

Forecast 3 (Starts off in the future, not in play. Put three time runes on this and remove one each upkeep. When you remove the last, it resolves.)
Take an extra turn after this one, then trash this card.

Purple • Future Ultimate Magic

Card-Specific Rulings

If you would take multiple extra turns, they do stack so you can potentially take 3 turns in a row. — Sirlin, 03/11/16

Keyword Rulings: Forecast X