1. Formula #1: 2 Epics for 1 Guaranteed Gold If you're missing a high-tier gold card but sitting on duplicate epics, many trade groups accept 2-to-1 gold card trades—especially during rush windows. 2. Formula #2: 3 Commons + 1 Rare = 1 Vault Pass It may sound odd, but some events let you convert this simple combo into a “vault key” or bonus entry. This is most effective during...