Sea Glass Relic

Is Sea Glass good in Slay the Spire 2?

Sea Glass is an ancient relic in Slay the Spire 2. While carried, it does the following: See cards from |another character}. Choose any number of them to add to your Deck. It currently underperforms most relics, sitting at F tier in our Slay the Spire 2 relic rankings.

Across 67 recorded runs, decks carrying it win 20.9% of the time, comfortably clear of the 13.9% average, by 7.0%. It’s a more situational relic, showing up in just 0.6% of runs. The class that gets the most out of it is the Regent, at a 28.6% win rate. Regent players hold onto it in 0.7% of their runs.

It combos especially well with Ascender's Bane, worth a +1.3% win-rate swing together. Another strong card to run with it is Defend, worth -0.9% to its win rate. On average it’s acquired around floor 18 of a run. Its ancient rarity shapes how frequently you’ll run into it.

It has 14 run wins against 53 losses in our tracked data. When runs carrying it end, the most frequent culprit is Decimillipede Elite, which closes out 11.9% of them. Read on for Sea Glass’s complete card, class, and threat breakdown before you decide to pick it up.

Pick or Skip: Sea Glass

Sea Glass is taken in 100.0% of its 67 recorded offers, but with 67 runs picking it and 0 passing, neither side has enough decided runs for a win rate yet.

Taken 67 times out of 67 offers.

A win rate is only shown once that side clears the sample floor. Below it you get the run counts and nothing else — a 0% here would be a reporting artefact, not a result.

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 Sea Glass

Ranked by win-rate lift, the best cards to run with Sea Glass are Ascender's Bane (+1.3%), Defend (-0.9%), and Strike (-0.9%).

Ascender's Bane+1.3%36 runsDefend-0.9%15 runsStrike-0.9%15 runsSurvivor-11.4%21 runsDefend-11.4%21 runsNeutralize-11.4%21 runs

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

Sea Glass Win Rate by Class

Sea Glass shows up across 3 classes, led by Regent (28.6%), Ironclad (25.0%), and Silent (9.5%) by win rate.

The Regent28.6%14 runsThe Ironclad25.0%16 runsThe Silent9.5%21 runs

Sea Glass Details

Sea Glass is an ancient relic carried in 0.6% of runs and usually picked up around floor 18.

See cards from |another character}. Choose any number of them to add to your Deck.

What Ends Runs with Sea Glass

Sea Glass’s most common run-enders are Decimillipede Elite (11.9%), Infested Prisms Elite (10.4%), and The Insatiable Boss (6.0%).

• Decimillipede Elite11.9% of runs
• Infested Prisms Elite10.4% of runs
• The Insatiable Boss6.0% of runs
• The Obscura Normal6.0% of runs
• Exoskeletons Normal4.5% of runs

See Also

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