SQLite3错误：行值使用错误

我正在尝试对我的数据库使用两个更新查询：

UPDATE equipment
SET equip_level = 'Hero'
WHERE equip = ('Amulet of Immortality');

UPDATE equipment
SET equip_level = 'Master'
WHERE equip = ('Shield of Pitch Black', 'Blade of MageBane', 'Leggings of Spikes', 'Gloves of Quickling skin', 'Helm of the Fire King', 'Scythe of Death');

第一个工作正常，但第二个有多个条目，给了我以下错误：

[11:37:16] Error while executing SQL query on database 'test': row value misused

我正在看的教程对第二个查询使用以下格式：

UPDATE equipment
SET equip_level = 'Master'
WHERE equip = IN ('Shield of Pitch Black', 'Blade of MageBane', 'Leggings of Spikes', 'Gloves of Quickling skin', 'Helm of the Fire King', 'Scythe of Death')

但这给了我一个语法错误：

[11:49:48] Error while executing SQL query on database 'test': near "IN": syntax error

---

如何更正此问题？

删除等号：

UPDATE equipment
SET equip_level = 'Master'
WHERE equip IN ('Shield of Pitch Black', 'Blade of MageBane', 'Leggings of Spikes', 'Gloves of Quickling skin', 'Helm of the Fire King', 'Scythe of Death')