Communal Brewing is a rare Enchantment card from Bloomburrow Commander (BLC), collector number 63. Current market price: $2.11, TCGplayer market prices via Scryfall.
When this enchantment enters, any number of target opponents each draw a card. Put an ingredient counter on this enchantment, then put an ingredient counter on it for each card drawn this way. Whenever you cast a creature spell, that creature enters with X additional +1/+1 counters on it, where X is the number of ingredient counters on this enchantment.