Kunai Relic

Is Kunai good in Slay the Spire 2?

Kunai is a rare relic in Slay the Spire 2. While carried, it does the following: Every time you play Attacks in a single turn, gain Dexterity. It currently underperforms most relics, sitting at D tier in our Slay the Spire 2 relic rankings.

Across 474 recorded runs, decks carrying it win 41.0% of the time, comfortably clear of the 13.8% average, by 27.2%. It’s a more situational relic, showing up in just 2.3% of runs. The class that gets the most out of it is the Silent, at a 52.2% win rate. Silent players hold onto it in 3.0% of their runs.

It combos especially well with Reflex, worth a +46.5% win-rate swing together. Another strong card to run with it is Cascade, worth +40.2% to its win rate. On average it’s acquired around floor 22 of a run. Its rare rarity shapes how frequently you’ll run into it.

It has 192 run wins against 276 losses in our tracked data. When runs carrying it end, the most frequent culprit is Queen Boss, which closes out 7.4% of them. Read on for Kunai’s complete card, class, and threat breakdown before you decide to pick it up.

Pick or Skip: Kunai

Out of 795 recorded offers Kunai is taken 60.1% of the time, and taking it is worth +11.0% in pick lift — 41.5% for runs that picked it against 30.2% for runs that skipped, across 470 decided runs.

Taken 478 times out of 795 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 Kunai

Ranked by win-rate lift, the best cards to run with Kunai are Reflex (+46.5%), Cascade (+40.2%), and Mad Science (+36.1%).

Reflex+46.5%16 runsCascade+40.2%16 runsMad Science+36.1%35 runsStorm of Steel+35.2%22 runsBig Bang+32.3%16 runsSerpent Form+29.6%19 runs

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

Kunai Win Rate by Class

Kunai shows up across 5 classes, led by Silent (52.2%), Necrobinder (45.5%), and Regent (34.4%) by win rate.

The Silent52.2%140 runsThe Necrobinder45.5%77 runsThe Regent34.4%65 runsThe Ironclad33.0%98 runsThe Defect32.2%89 runs

Kunai Details

Kunai is a rare relic carried in 2.3% of runs and usually picked up around floor 22.

Every time you play Attacks in a single turn, gain Dexterity.

What Ends Runs with Kunai

Kunai’s most common run-enders are Queen Boss (7.4%), Test Subject Boss (5.9%), and Aeonglass Boss (4.2%).

• Queen Boss7.4% of runs
• Test Subject Boss5.9% of runs
• Aeonglass Boss4.2% of runs
• Knowledge Demon Boss3.8% of runs
• Decimillipede Elite3.8% of runs

See Also

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