Hero Siege Arch Wizard Antero drops

Location & trigger

Arch Wizard Antero supplies Fragment of Tundra in Act 2 on Inferno. Fight the monster inside Ancient City in The Glacial Trail (2-5). Death is the Act boss reached through Chilling Cavern in the same area, but has a different reward and material pool.

Entry materials & uses

Keep one Fragment of Tundra for Signet of Existence, together with one fragment from each of Acts 1, 3, 4, 5, 6 and 7. Signet of Existence opens the Architect of Ruin encounter on Inferno. The fragment itself is an ingredient, not a ready-to-use boss key.

• Signet of Existence acquisition & uses
• Ancient Key acquisition & uses

Compare encounters

Commander Albert is the equivalent Act 1 fragment source. Death’s Sigil belongs to Key of Terror instead, so farming the Act 2 boss does not replace farming Antero for Fragment of Tundra. Ancient City uses Ancient Key, whose dungeon-key route is a global monster drop.

Reward uses & preparation

The seven-fragment collection also requires Commander Albert in Act 1, Helgrom Chieftain in Act 3, Nugget in Act 4, Rotting Snapper in Act 5, Cult Leader in Act 6 and Reaking Agony in Act 7. Each has its own Inferno fragment route. Antero’s Fragment of Tundra is one ingredient in that collection, not a complete Signet.

Difficulty & item conditions

Fragment of Tundra has an Inferno condition. All named rewards on this page carry that condition. The item’s required character level is an equipment requirement, not a minimum area level.

Related sources