Goku, Master of the Drip

When Goku, Master of the Drip enters the
battlefield, reveal the top 5 cards of your
library and choose an equipment or aura
card. Put that card into your hand, and
the rest on the bottom of your library
in any order.
Aura and equipment spells you cast cost {1} less to cast.
"I only wear the most expensive Supreme brand Auras and equipment. Don't even get me started on my shoe collection."