Tomik, Wielder of Law (SOC-333) [Commander: Secrets of Strixhaven]

Affinity for planeswalkers (This spell costs 1 less to cast for each planeswalker you control.)

Flying, vigilance

Whenever an opponent attacks with creatures, if two or more of those creatures are attacking you and/or planeswalkers you control, that opponent loses 3 life and you draw a card.