Sentry Mode•Power

Is Sentry Mode good in Slay the Spire 2?

In Slay the Spire 2, Sentry Mode is a rare power from the Necrobinder card pool. Its effect: At the start of your turn, add 1 Sweeping Gaze into your Hand. Performance-wise it’s a solid if unspectacular include, rated C tier overall.

Over 112 tracked runs its win rate sits at 29.7%, 15.6% ahead of the 14.1% all-deck baseline. It sees niche play, included in only 1.1% of eligible runs. When it is actually offered players take it 30.6% of the time, and that looks correct: those runs win 31.8% against 27.1% for runs that passed, a +4.3% pick lift over 88 decided runs. Within Necrobinder runs it’s drafted 5.9% of the time, making it a regular part of that class’s decks. Decks that include it run about 1.1 copies on average.

Its standout pairing so far is Rattle, which lifts its win rate by +24.3% when the two share a deck. On the relic side, Vajra is its standout companion, worth a +28.3% win-rate swing alongside it. It costs 2 energy, gets upgraded 57.4% of the time, and tends to be picked up near floor 14.

Upgrading the card adds -1 EnergyCost to its stat line. Of the runs that drafted it, 33 ended in victory against 78 deaths and 1 abandons. Its most common run-ender is Knowledge Demon Boss, finishing 8.0% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Sentry Mode fits a Necrobinder deck.

Pick or Skip: Sentry Mode

Players take Sentry Mode in 30.6% of the 307 offers it appears in; those runs win 31.8% against 27.1% for runs that passed, a pick lift of +4.3% over 88 decided runs.

Taken 94 times out of 307 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.

When to Pick Up Sentry Mode

Of the 3 pickup windows recorded for Sentry Mode, Act 2 is the best: 33.3% across 21 runs.

Win rate of runs by the act Sentry Mode entered the deck. Acts that have not reached the sample floor show their run count only.

Best Cards to Pair with Sentry Mode

Sentry Mode’s strongest card pairings so far are Rattle (+24.3%), Friendship (+17.7%), and Necro Mastery (+16.3%), each shown with the win-rate lift it adds.

Rattle+24.3%28 runsFriendship+17.7%30 runsNecro Mastery+16.3%16 runsHigh Five+15.9%25 runsCalcify+15.3%21 runsCall of the Void+13.5%20 runs

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

Sentry Mode Win Rate by Class

Exclusive to the Necrobinder, Sentry Mode posts a 29.1% win rate over 111 tracked runs.

The Necrobinderappears in 5.9% of its runs (111 tracked)

Best Relics for Sentry Mode

The relics that swing Sentry Mode’s win rate the most are Vajra (+28.3%), Bone Flute (+24.0%), and Anchor (+23.5%), with each lift shown.

Vajra+28.3%22 runsBone Flute+24.0%16 runsAnchor+23.5%21 runsGorget+22.2%15 runsStrike Dummy+21.8%21 runsWhetstone+21.8%21 runs

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

Sentry Mode Card Details

A 2-energy rare power, Sentry Mode is upgraded 57.4% of the time and tends to enter the deck around floor 14.

At the start of your turn, add 1 Sweeping Gaze into your Hand.

Upgrade: -1 EnergyCost

What Ends Runs with Sentry Mode

Runs holding Sentry Mode end most often against Knowledge Demon Boss (8.0%), Decimillipede Elite (5.4%), and Entomancer Elite (4.5%) — the share of its runs each accounts for is shown.

• Knowledge Demon Boss8.0% of runs
• Decimillipede Elite5.4% of runs
• Entomancer Elite4.5% of runs
• Infested Prisms Elite3.6% of runs
• Aeonglass Boss3.6% of runs

See Also

Keep exploring Slay the Spire 2 tier lists and stats below.