Mercury Hourglass Relic

Is Mercury Hourglass good in Slay the Spire 2?

Mercury Hourglass is an uncommon relic in Slay the Spire 2. While carried, it does the following: At the start of your turn, deal damage to ALL enemies. It currently underperforms most relics, sitting at D tier in our Slay the Spire 2 relic rankings.

Across 602 recorded runs, decks carrying it win 35.0% of the time, comfortably clear of the 13.9% average, by 21.1%. It’s a more situational relic, showing up in just 5.2% of runs. The class that gets the most out of it is the Regent, at a 42.4% win rate. Regent players hold onto it in 5.0% of their runs.

It combos especially well with Parry, worth a +38.7% win-rate swing together. Another strong card to run with it is Sword Sage, worth +37.2% to its win rate. On average it’s acquired around floor 20 of a run. Its uncommon rarity shapes how frequently you’ll run into it.

It has 209 run wins against 388 losses in our tracked data. When runs carrying it end, the most frequent culprit is Test Subject Boss, which closes out 8.5% of them. Read on for Mercury Hourglass’s complete card, class, and threat breakdown before you decide to pick it up.

Pick or Skip: Mercury Hourglass

Out of 997 recorded offers Mercury Hourglass is taken 61.7% of the time, and taking it is worth +9.4% in pick lift — 35.6% for runs that picked it against 26.0% for runs that skipped, across 610 decided runs.

Taken 615 times out of 997 offers.

Pick rate when offered counts offers, not runs: out of every time the game put this in front of a player, how often it was taken. It is not the same number as the share of runs that end up containing it.

Pick lift is the sample-adjusted gap between runs that took the option and runs that passed on it. It is the fair way to rank choices, because raw win rates put the smallest samples on top.

Best Cards with Mercury Hourglass

Ranked by win-rate lift, the best cards to run with Mercury Hourglass are Parry (+38.7%), Sword Sage (+37.2%), and Dying Star (+31.7%).

Parry+38.7%19 runsSword Sage+37.2%18 runsDying Star+31.7%15 runsGamma Blast+31.7%18 runsFurnace+31.7%18 runsStoke+30.0%20 runs

Based on small co-occurring samples — treat these as early signals, not final verdicts.

Mercury Hourglass Win Rate by Class

Mercury Hourglass shows up across 5 classes, led by Regent (42.4%), Silent (36.8%), and Necrobinder (34.1%) by win rate.

The Regent42.4%100 runsThe Silent36.8%153 runsThe Necrobinder34.1%91 runsThe Defect30.7%89 runsThe Ironclad30.1%165 runs

Mercury Hourglass Details

Mercury Hourglass is an uncommon relic carried in 5.2% of runs and usually picked up around floor 20.

At the start of your turn, deal damage to ALL enemies.

What Ends Runs with Mercury Hourglass

Mercury Hourglass’s most common run-enders are Test Subject Boss (8.5%), Queen Boss (5.3%), and Kaiser Crab Boss (5.0%).

• Test Subject Boss8.5% of runs
• Queen Boss5.3% of runs
• Kaiser Crab Boss5.0% of runs
• Knowledge Demon Boss4.5% of runs
• Aeonglass Boss4.5% of runs

See Also

Compare Mercury Hourglass with the rest of the best Slay the Spire 2 relics, cards, and classes below.