Primal Prayers - Modern Horizons 3 - 166

Enchantment

Mana Cost: {2}{G}{G}

When this enchantment enters, you get {E}{E} (two energy counters).
You may cast creature spells with mana value 3 or less by paying {E} rather than paying their mana costs. If you cast a spell this way, you may cast it as though it had flash.

Rare · Modern Horizons 3 · #166 (MH3)

Illustrated by Yeong-Hao Han