Take on the challenge of the Sentinel, on a custom boss arena in the Jungle, and get rewarded for defeating it.
Features
The Sentinel Arena is an upgraded and larger Jungle Temple with distinctive copper linings, featuring a platform at the top where you encounter the new overworld boss the Sentinel.
Once the boss has been defeated, not only do you receive a Lightning Core, but the arena floor will open up revealing two treasure rooms, but be careful as with the four loot chests there is a monster spawner.
Generation
The Sentinel Arena can be found in the Jungle and Sparse Jungle biomes.