Gjallarhorn's Call

Search your library for any number of
God cards, shuffle your library, and put
those cards on top of it in any order.
The Gjallarhorn is one of the most prized
treasures of the gods... During Ragnarok, the
giants will march upon Asgard. When Heimdall
spots them [...], he will let out such a huge blast
from the Gjallarhorn.