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Health 3000 (Heart.png×1500)
Damage 4 (Heart.png×2)
Environment Ancient Cavern
Hostility Aggressive
Version 2.0
Item (Quantity) Rate
Erebon Scythe.png Erebon Scythe 10%
Erebon Stickler.png Erebon Stickler 10%
Erebon Banner.png Erebon Banner 20%

Boss Information[edit | edit source]

Penumbra is one of the bosses of the Ancient Cavern. Penumbra can be challenged by using a Erebon Shrine with 70 Hunter and Augury levels and a full Erebon Tribute bar. When defeated, it will respawn in its chamber 30 seconds later.

Behavior[edit | edit source]

Penumbra summons a random minion that fights for it. It attacks with standard ranged attacks. The minions that Penumbra spawn are Occulents, Alarmos, Shifters, Devourers, Basilisks, Apparitions, Hellspots and Stalkers.

Strategies[edit | edit source]

Penumbra's minions come in a massive variety so it is nigh impossible to create a separate tactic for all of his spawns. Some, like Alarmos and Stalkers, are more dangerous than his other minions and should be focused on first. It is recommended to take out that minion as fast as possible or else it is possible for Penumbra to create a large army very quickly.

In this case, due to the amount of minions you will fight it is best to bring one of the following:
- Rejuvination Staff
- Kaiyu Staff
- Show Staff - Commander Armor
- SpaceKing Armor
- Baron Armor
- A very good sword (Skeletal, Supremacy, etc.)

- Some sort of medium - fast - constant beam firing gun.

Drops[edit | edit source]

Penumbra drops his stone statue 20% of the time.

Related Advancements[edit | edit source]

Icon Name Description Parent ID Hidden
The Outer Shadow Defeat Penumbra, champion of Erebon Challenger's Arena aoa3:ancientcavern/the_outer_shadow No
Erebon's Contender Craft a Gold Penumbra Statue The Outer Shadow aoa3:ancientcavern/erebons_contender No
Erebon's New Champion Craft an Ornate Penumbra Statue Erebon's Contender aoa3:ancientcavern/erebons_new_champion Yes

Trivia[edit | edit source]

A penumbra is a shadow cast over a portion of an object, generally referring to the moon.