Obscura Ascendancy (SNC) #322 [EN/F]

{W}{U}{B} · Enchantment · Whenever you cast a spell, if its mana value is equal to 1 plus the number of soul counters on this enchantment, put a soul counter on this enchantment, then create a 2/2 white Spirit creature token with flying. As long as there are five or more soul counters on this enchantment, Spirits you control get +3/+3. · Illustrated by Krharts · Streets of New Capenna #322 · EDHREC rank 24190 · Magic: The Gathering, MTG