Esquío, Cursed by Gold

Whenever a Treasure artifact is sacrificed, put
a +1/+1 counter on Esquío, Cursed by Gold.

Whenever a creature is dealt damage by
Esquío, Cursed by Gold, put a gold curse counter on it (creatures with gold curse counters on it are Treasure artifacts in addition to their other types).

Whenever a creature with a gold curse token
on it dies, you create a Treasure token.