This is a list of enemies that drop Tier 1 Rings.
Sort order is alphabetical, ignoring descriptors where it would separate otherwise similar enemies, and ignoring articles, except for any ‘groups’ (eg. Dungeon Bosses) which go first.
The enemies are:
Deathmage Chest
Dreadstump the Pirate King
Dwarf King
Elf Wizard
Goblin Mage
Haunted Spirit
Hobbit Mage
Undead Hobbit Mage
Lich
Oasis Giant Chest
Phoenix Lord Chest