Latavius, Urchin Underfoot

When Latavius ETBs you may search your
library or graveyard for a card named Curious Pattern, reveal it, and put it into your hand.
Whenever Latavius becoms tapped, create a clue.
Whenever a creature an opponent controls with
cmc 4 or greater becomes tapped, you may pay {1} and tap Latavius; if you do, create a treasure.