Soul Corrupted Royal Guard

Inside Fishing Hut (in the quest Hiking Frozen Highlands) and Shipwreck (in the quest Hiking Frozen Highlands, from threat level 2). Frozen Highlands Rifts. Also in the quest Illager Intelligence.

Outdoors in the quest The Creeper Candle Conspiracy. Honeycomb Fields Rifts. Also in the quest The Creeper Candle Conspiracy, from threat level 2.

Outdoors in the quests The Silence in Little Howl (up to threat level 4) and The Missing Note Blocks (from threat level 2). Howling Woods Rifts.

Outdoors in the quests A Friend till the End and Wrath of the Sculkers.

Outdoors in the quests The Final Souldown and A Friend till the End.

Inside Red Tower (in the quest Illegal Illager Trials), The Supreme Evoker's Tower (in the quest Wading Rainy Plains) and White Tower (from threat level 2). Rainy Plains Rifts.

Outdoors from threat level 2. Also in the quest The Illagers from the Rift, up to threat level 4.