Seraph of Rings

As Seraph of Rings enters the battlefield, search
your library for any number of noncreature
artifact cards whose name contains the word
"Ring." Exile those cards then shuffle your
library. If five or more cards are exiled this way,
Seraph of Rings gains flying.
Seraph of Rings has all activated abilities of cards
exiled with it. Replace all instances of "equipped"
with "this" on those cards.