Amulet of Countless Tales

If there are three or more legend counters on Amulet of Countless Tales, equipped creature gets +5/+5. Otherwise, it gets +1/+1.
Whenever a creature enters the battlefield under your control, equip Amulet of Countless Tales to that creature. Then, if that creature was cast from exile, put a legend counter on Amulet of Countless Tales.
"Every bearer leaves a hint of their journey."