An icon with two rectangles on top of each other often means copy this decklist to your clipboard and is a great start to selecting all the relevant information
Sitting at 6 mana, this enchantment isnt the best board wipe (it only does 3 damage), but it can stop aggro decks effectively
Also, these help to have a grasp of many of the core mechanics of the game
For bonus points, I combine it with Peer into the Abyss to show my enemies that the cost of greatness is sometimes too high
You can end on Thor instead of Odin if you use Ivaldi before Gullveig or already have an Alviss in GY (you go 3+4+3), or are going second vs a monster-heavy board
send 1 Level 3 or lower Beast, Beast-Warrior, or Winged Beast monster from your Deck to the GY