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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.
If Communal Brewing leaves the battlefield before its last ability resolves, use the number of ingredient counters that were on it as it last existed on the battlefield to determine the value of X.
The value of X is calculated as Communal Brewing's last ability resolves.
You don't have to choose any target opponents for Communal Brewing's first ability. However, if you do, and all of those targets are illegal as the ability tries to resolve, it won't resolve and none of its effects will happen. No players will draw cards, and you won't put any ingredient counters on Communal Brewing.
