Ectoplasm Relic

Is Ectoplasm good in Slay the Spire 2?

Ectoplasm is an ancient relic in Slay the Spire 2. While carried, it does the following: You can no longer gain Gold. Gain Energy at the start of each turn. It currently underperforms most relics, sitting at D tier in our Slay the Spire 2 relic rankings.

Across 38 recorded runs, decks carrying it win 31.6% of the time, comfortably clear of the 13.8% average, by 17.7%. It’s a more situational relic, showing up in just 0.2% of runs. The class that gets the most out of it is the Necrobinder, at a 50.0% win rate. Necrobinder players hold onto it in 0.4% of their runs.

It combos especially well with Ascender's Bane, worth a +7.5% win-rate swing together. On average it’s acquired around floor 18 of a run. Its ancient rarity shapes how frequently you’ll run into it.

It has 12 run wins against 26 losses in our tracked data. When runs carrying it end, the most frequent culprit is Kaiser Crab Boss, which closes out 10.5% of them. Read on for Ectoplasm’s complete card, class, and threat breakdown before you decide to pick it up.

Pick or Skip: Ectoplasm

Ectoplasm is taken in 100.0% of its 38 recorded offers, but with 38 runs picking it and 0 passing, neither side has enough decided runs for a win rate yet.

Taken 38 times out of 38 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 Ectoplasm

Ranked by win-rate lift, the best cards to run with Ectoplasm are Ascender's Bane (+7.5%).

Ascender's Bane+7.5%23 runs

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

Ectoplasm Win Rate by Class

So far Ectoplasm is carried mainly by the Necrobinder, who win 50.0% of their runs with it across 14 tracked.

The Necrobinderappears in 0.4% of its runs (14 tracked)

Ectoplasm Details

Ectoplasm is an ancient relic carried in 0.2% of runs and usually picked up around floor 18.

You can no longer gain Gold. Gain Energy at the start of each turn.

What Ends Runs with Ectoplasm

Ectoplasm’s most common run-enders are Kaiser Crab Boss (10.5%), Knowledge Demon Boss (10.5%), and Decimillipede Elite (5.3%).

• Kaiser Crab Boss10.5% of runs
• Knowledge Demon Boss10.5% of runs
• Decimillipede Elite5.3% of runs
• Test Subject Boss5.3% of runs
• Aeonglass Boss5.3% of runs

See Also

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