Hero Siege Guardian of Hell - How to Find It and Enter ADP

What is Guardian of Hell?

Guardian of Hell is an Ancient monster affix, not the name of a fixed boss. When a monster with the affix dies, it opens a portal to Arch Demons Plateau. The affix also has a chance to drop special runes.

Those mechanics come from the official Hero Siege Wiki’s Ancient affix table. The important search cue is the affix name attached to an Ancient monster: the underlying monster can vary, but Guardian of Hell is the label that matters.

How do you find Guardian of Hell in Season 10?

The current Season 10 Ether Tree guide recommends the Guardians of Hell node for this target. It increases the chance that Overworld monsters appear as bosses, creating more opportunities to encounter the affix and reach Arch Demons Plateau.

If the system itself is new to you, start with the site’s Ether Tree overview before committing points to a specialized Overworld route.

Use that as a farming specialization rather than a guaranteed trigger:

1. Allocate the Guardians of Hell node in the Ether Tree.
2. Clear regular Overworld maps and watch Ancient monster affix labels.
3. Kill any monster marked Guardian of Hell.
4. Enter the Arch Demons Plateau portal that appears on death.

The collected Season 10 source does not give an exact node percentage, Guardian spawn chance or average number of maps per portal. Any fixed number for those rates would be guesswork.

What happens inside Arch Demons Plateau?

The official Arch Demons Plateau page identifies it as a Unique Zone. Inside, you fight three bosses:

• Satan
• Damien
• Reaper

Defeat all three to gain access to three Arch Demon Chests. This is why the Season 10 farming guide treats Guardian opportunities as a route to Plateau rewards rather than ordinary Overworld loot alone.

Why is the Guardian of Hell affix dangerous?

It is much tougher than an unmodified monster. The official affix table lists these modifiers:

Modifier	Value
Increased Defense	350%
Increased Life	500%
Increased Damage	175%
Reduced Damage Taken	65%
Reduced Movement Speed	20%
Increased Magic Find	275%
Increased Size	35%

The slower movement does not make it a quick kill: the extra life, defense and damage reduction stack into a durable target, while its increased damage makes standing still risky. Clear nearby enemies first when possible so the affix’s health pool does not turn into a crowded fight.

Does Guardian of Hell guarantee an ADP portal?

The official-wiki wording says the portal spawns when the affixed monster dies. What is not documented in the collected sources is the chance to encounter the affix in the first place. The Season 10 Ether Tree node improves your opportunities, but its exact percentage is not available in the evidence used for this guide.

If you are building a wider boss-farming loop, compare the Ruby Garden guide for another unique-zone target. Players still moving through the difficulty ladder should check how to unlock Hell before investing in a specialized Overworld route. For the progression system behind this farm, review the Ether Tree guide before spending nodes.