Bilbo's Ring
Legendary Artifact — Equipment
During your turn, equipped creature has hexproof and can't be blocked.
Whenever equipped creature attacks alone, you draw a card and you lose 1 life.
Equip Halfling 
(: Attach to target Halfling you control. Equip only as a sorcery.)
Equip 
(: Attach to target creature you control. Equip only as a sorcery.)
Illustrated by
The Lord of the Rings: Tales of Middle-earth#298RareEnglish