As Foretold (WOT-014) - Wilds of Eldraine: Enchanting Tales: (Showcase) (Borderless) Foil

At the beginning of your upkeep, put a time counter on this enchantment.
Once each turn, you may pay {0} rather than pay the mana cost for a spell you cast with mana value X or less, where X is the number of time counters on this enchantment.