Upon pickup, obtain 4 Wax Relics. Every 3 combats, your left-most Wax Relic will melt away.
Toy Box currently ranks #201 out of 292 in the Slay the Spire 2 Relics tier list with a rating of 1456.97.
This ranking is based on 35 community votes (15 wins, 20 losses) for a win rate of 42.9%.