Overview
Luck Tome adds +7% Luck per level. Luck improves the probability of obtaining higher-rarity rewards during level-ups, Shrine interactions, chest openings, Moai offers, and Shady Guy inventory. It does not directly increase Crit Chance, item proc rates, or Powerup Drop Chance. For the complete formula and timing rules, read the Luck stat guide. Pair the Tome with Fox, Clover, XP Tome, and Cursed Tome for a reward-quality snowball build.
💡 Key Point: Luck Tome is universally considered one of the best Tomes in the game once unlocked, but its extreme rarity makes it a late-game achievement for most players. Its compound effect means the earlier you invest in it during a run, the more impactful it becomes.
What Luck Affects
Shop timing: Shady Guy inventory is rolled when you enter a stage. Raising Luck after entry will not reroll the current inventory. See what Luck affects and the rarity formula for the full mechanic.
How to Unlock Luck Tome
Based on multiple recent sources, Luck Tome is obtained as an extremely rare drop, commonly described as having a ~0.01% chance to drop when killing any enemy.
Recommendation: Treat this as a rare drop and expect to play many runs before obtaining it. When it does drop, prioritize it immediately.
💡 Expected Kill Count (Theoretical Probability):
- ~10,000 kills: Approximately 63% chance to have obtained it
- ~30,000 kills: Approximately 95% chance
- ~50,000 kills: Approximately 99% chance
*These are statistical estimates based on independent Bernoulli events, not official figures. Actual results may vary.
Stats & Progression
Current Luck Tome values
- Per Level: +7% Luck
- Max Level: Base Tome cap 99 before cap-raising effects
- Total Impact: High-level Luck Tome dramatically shifts reward pools toward Rare/Epic/Legendary tiers
Why Luck Tome is S-Tier: The Snowball Effect
The true power of Luck Tome lies in its compound snowball effect. Here's how it works:
Early Investment
You acquire Luck Tome and invest a few levels into it during the first 5-10 character levels
Better Level-Ups
Higher Luck means more Rare/Epic/Legendary options appear at subsequent level-ups
Stronger Build
You select superior upgrades, making your character significantly more powerful
Faster Progress
A stronger build clears stages faster and survives longer, leading to more level-ups
Exponential Growth
More levels + better average rewards can create a strong indirect power curve, subject to diminishing returns
💡 Pro Insight: This is why XP Tome + Luck Tome is considered one of the most powerful combinations in the game. XP Tome accelerates leveling, which multiplies the benefit from Luck Tome's improved rewards.
Best Synergies & Pairings
While Luck Tome is powerful on its own, combining it with certain Tomes and Items creates game-breaking strategies:
🎯 Advanced Strategy:
- Prioritize Luck Tome in your first 5-10 levels for maximum compound effect
- Combine with XP Tome for absurd snowball potential
- Use Cursed Tome to multiply enemy kills and drop opportunities
- Even a few levels of Luck make a noticeable difference in reward quality
Strategy Guide
- Once obtained, invest in it early so you can snowball with better rewards
- Works especially well in long runs where you can see many level-up screens
- Prioritize Luck Tome in your first 5-10 levels for maximum compound effect
- Combine with XP Tome for absurd snowball potential
- Even a few levels of Luck make a noticeable difference in reward quality
- Perfect for players who enjoy optimization and perfect runs
When to Use Luck Tome
- ✅ Best for: Long runs where you'll gain many levels
- ✅ Best for: Players who want to optimize build quality
- ✅ Best for: Combining with XP farming strategies
- ✅ Best for: Runs where you're confident you won't die early
- ⚠️ Less useful: Short speedruns with limited level-ups
- ⚠️ Less useful: If you're struggling to survive (prioritize combat stats first)
Pro Tips & Important Notes
- Considered a late-game Tome because of its very low unlock chance
- More of a utility Tome than a direct combat booster
- High-level Luck Tome dramatically shifts reward pools toward Rare/Epic/Legendary tiers
- The earlier you invest in a run, the more later reward rolls can benefit
- Don't neglect combat stats entirely - you still need to survive to benefit from better rewards
- Many players consider this the best Tome in the game once unlocked
- Shady Guy inventory uses Luck at stage entry; later Luck gains do not reroll it
Version History & Bug Notes
⚠️ Important Historical Note:
Version 1.0.17 Patch (October 2025): Fixed a bug where Luck and Chaos Tome were causing Rare/Epic/Legendary rolls to be multiplied twice, leading to abnormally high drop rates for high-tier rewards.
If you're watching older guides or videos from before October 2025, be aware that they may showcase this bugged behavior. The current version has corrected this issue.
Source: Developer patch notes (2025-10-03), Reddit r/MegabonkOfficial
Community Tier Ratings
Luck Tome consistently ranks at the top of community tier lists:
💡 Note on Tier Ratings: Tier lists are subjective and reflect community opinion, which can shift with balance patches and evolving strategies. Always cross-check with the latest patch notes for current meta.