The Corrupted Sword in Megabonk is by far one of the most challenging weapons to unlock. Additionally, it is also perfect min-maxing gear for players who love risky gameplay.
Megabonk's Corrupted Sword is a melee cleaver that slashes both forwards and backwards. Plus, the lower your HP, the better the damage count. When your HP dips below 30%, the Corrupted Sword receives a massive spike in its damage and keeps you on your toes, even when your HP is at its lowest.
To help you acquire the Corrupted Sword, here is a quick guide on how the unlocking challenge works, the best build for it, and which character works best with the weapon.
Unlocking Corrupted Sword in Megabonk

Start your Corrupted Sword unlocking challenge by first upgrading the Cursed Tome to level 20 in a run's first 10 minutes. To save your time, hit Refresh and/or Banishroll for better luck, and pray to the RNG Gods for support.
If the Cursed Tome fails to appear within your first two upgrade choices, even after refreshing, restart the game till it pops up. The moment you acquire it, start your Corrupted Sword challenge. You can speed up your leveling by using XP-boosting tomes and items such as the XP Tome to raise your XP earnings.
Here is how to ensure you have the best possible luck for leveling the Cursed Tome to level 20 in 10 minutes:
For starters, use either Megachad or Athena for your run. Athena's Lock in Ability raises her damage when her HP is low. Megachad's Flex, on the other hand, can stop damage and stun enemies. These skills come in handy for leveling up the Cursed Tome faster.
Up next, refund your Weapon and Tome slots down to two. This way, you will have fewer options popping up per level reward, and the Cursed Tome can appear more frequently for leveling. As for your weapons, aim for Aura and Aegis for the run. Aura swiftly damages enemies around you to hasten your XP farm, while the Aegis sends out shockwaves and blocks attacks to keep your leveling path clear. Level up Aura till level 8 for more damage and size gains, and get your Aegis up to level 2/3 to increase the shield count for more defence.
As for the map, go for the Tier 1 Forest, with the Turbo Mode Challenge active. It comes with -96% Chest Price. You can use rewards from chests like the Cursed Doll and Moldy Cheese to amp up your damage. Cursed Doll curses one enemy to deal 90% of their HP per second, while the Moldy Cheese has a 40% chance to poison enemies when hit. Faster kills mean faster leveling.
Keep moving around the map continuously to pick up chests and XP to level up your Cursed Tome to level 20 faster, without a hitch.
Extra Tips for Leveling Cursed Tome to Get Corrupted Sword

Two crucial tips to level up your Cursed Tome without a hiccup would be to first focus on duplicating the Moldy Cheese and Cursed Doll in the microwave for amplified Poisoning and Damage to clear enemy hoards. Secondly, pick up a Time Bracelet for increasing your XP gains.
Best Build for Corrupted Sword

The Corrupted Sword in Megabonk scales perfectly with Projectile Count, Damage, Size, and Knockback tomes. And thanks to its boosting damage when your health is low, the Corrupted Sword is considered one of the best late-game weapons to carry into waves.
You can pair it with kill-to-heal objects like the Bloody Tome, which can heal you when you hit an enemy. Using this, you can survive longer against hordes and bosses. Add in more defensive items, such as the Mirror, to gain short bursts of invulnerability to weather tougher hits.
In conclusion, farming the Corrupted Sword in Megabonk takes serious effort and strategies. You need to first unlock the required tomes and objects to head into the instance, and time your level-ups to match the criteria. So check out Megabonk today and immerse yourself in its maximum craziness!
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