Holy Water

Holy Water is a boss relic exclusive to the Watcher. It replaces the starter relic Pure Water and adds 3 Miracles to your deck at the start instead of 1. Miracles are 0-cost cards that grant 1 Energy when played. It is automatically obtained when the Watcher defeats the Act 1 boss.

Having 3 Miracles instead of 1 significantly increases the Watcher's access to free Energy each cycle. Miracles are powerful because they cost 0 and generate 1 Energy, effectively acting as free card draws that also give you resources. The Watcher's kit synergizes strongly with having many 0-cost cards through effects like Establishment (reducing cost of cards retained between turns) and Rushdown (drawing a card when entering Wrath). More Miracles also increases the reliability of Omniscience combos and other high-value setups. Holy Water is especially strong on Miracle-focused builds that use Meditate, Collect, and Sanctity to generate and cycle Miracles repeatedly. The downside is minor — a slightly larger deck — and the overall power increase from Pure Water to Holy Water is substantial.