This is the Chakki NA Summer Prelims Tempo Mage Deck we saw him 
play on stream. It turned his fortune round as he was 0-2 down, and it’s also one of the first times everyone has seen the new Firelands Portal card used in a huge tournament.
The card proved it’s worth taking out an Ancient of War and dropping a 5/4 Harrison Jones. Pretty good value for a 7 mana card and shows why it’s become an instant include in Tempo Mage decks.