The Corrupted Giant Treeman (CGT) is a powerful boss monster. It is found in the Corruption when in Worst Moon Mode. It has 100,000,000,000 HP, and it has to be defeated within 30 minutes.
The Corrupted Giant Treeman is very difficult to defeat because it can apply long-duration debuffs and heal itself very quickly.
The Corrupted Giant Treeman's HP is shown in a purple bar at the top of the screen, instead of the normal Corruption monster stat indicator bars.
When facing the Corrupted Giant Treeman, players will slowly take increasing amounts of damage due to Asphyxia.
Getting the Corrupted Giant Treeman to spawn
In order to encounter the Corrupted Giant Treeman, one must enter the Corruption while in Worst Moon Mode. This can either be done by equipping the Invisible X ally, or by equipping the Worst Moon Gem. Entering the Corruption while Worst Moon Mode is activated will not lead to the normal raid, but a special version of the Corruption where the Corrupted Giant Treeman will spawn.
The Corrupted Giant Treeman gains new abilities based on how much damage it has sustained.
90% or less HP: Shield: becomes immune to all damage
80% or less HP: Potion block: drains all mana and spirit, stuns for 3 seconds, potion blocks for 30 seconds, and deals 250,000 true damage
70% or less HP: Thunder: drains all mana and spirit, stuns for 3 seconds, weaken, blind and zombify for 30 seconds, and deals 1,000,000 true damage
60% or less HP: SOAP: soaps for 30 seconds and deals 250,000 true damage
50% or less HP: Heal: heals 1% of it’s missing HP and removes poison, blind and weaken
40% or less HP: Icicle: deals 750,000 true damage, and applies poison, weaken and slow for 30 seconds, and stun for 5 seconds.
It won’t use a status effect spell if there’s at least 5 seconds of corresponding status time. Also It won’t use thunder on you if you’re potion blocked, and also won’t use potion block on you if you’re zombified.
The corrupted giant treeman is very difficult to defeat. There are many reasons for this.
The first reason is that it can only be defeated while in Worst Moon Mode. This decreases your damage output by a large amount, makes critical hits much less effective, reduces your HP, and apply numerous other debuffs to your character.
It's attacks deal true damage, which means that damage reduction/resistance is useless. However, the damage portion of its attacks can be dodged, but the status effects cannot. Furthermore, Icicle + Thunder deals 1,750,000 true damage, Zombify + Slow makes healing difficult, and poisons you, which can be fatal.
It can cast endless stats effects, especially when it's HP is low. Periods of time when your attacks are at full power are quite rare, and due to the time limit, there might not be enough time.
The corrupted giant treeman gives 25,000,000 base EXP when killed (multiplied by EXP bonuses and boosts). This is the highest amount of EXP given by a battle arena monster. It also gives the 1st highest coins at 2,000,000 and the most amount of pixels (7,000,000)