Banner of Ares is a Grand Archive card. Compare listings from Singapore Grand Archive sellers on CardJio, then jio them on WhatsApp.
Whenever you activate a wind element card, if there are less than four refinement counters on Banner of Ares, put a refinement counter on Banner of Ares. As long as there are four or more refinement counters on Banner of Ares, each wind element ally that enters the field under your control enters with an additional buff counter on them.