Unless specifically allowed by the DM in any Dark Chaos campaign (and as a hard rule for level 20 games like Escape), You can hold and wear items only up to reasonable physical limits:

• A single two-handed weapon
  or two one-handed weapons
  or any 2 of shield, rod, wand, staff, or one-handed weapon (no duplicates)
• One suit of armor and/or set of robes
• Three amulets or necklaces
• Four rings
• One cloak or cape
• One belt or girdle
• One pair of bracers or arm items
• One pair of goggles or eye equipment
• One pair of gloves or hand items
• One pair of boots or feet coverings

You cannot attune to more than one item with the same base name (e.g., “+1 wand of the war mage” counts as the exact item as a “+2 wand of the war mage”).