At the start of each combat, choose 1 of 3 random Colorless cards and add the chosen card into your Hand.
Toolbox currently ranks #54 out of 292 in the Slay the Spire 2 Relics tier list with a rating of 1575.21.
This ranking is based on 45 community votes (27 wins, 18 losses) for a win rate of 60%.