4Mana OTK (Dig Site)

Combo pieces: Cabal Scavenger + Dig Site*2 + Antique Polisher + Severin, the Mad Mage or The Praxis Arcanum

How to play:
A is safer(8 Mana). B is faster(4~5Mana), also need setup.
A. Play The Praxis Arcanum(4Mana), then play Antique Polisher(2Mana)to reduce the 1st copy of Dig Site to 0 (The Praxis Arcanum reduce the cost by 1). Play 0 cost Dig Site to return Antique Polisher to hand. Play Antique Polisher(2Mana) to reduce the 2nd copy of Dig Site. Play Cabal Scavenger, then play the Dig Site in hand to return the one in play. repeat until you win.

B. 4 Mana fast combo (need setup)
set up:
play Antique Polisheron 1 of theDig Site to reduce the cost to 1. play 1 cost Dig Site return Antique Polisher. play Antique Polisher to reduce the 2nd copy of Dig Site to 1.
then,
play The Praxis Arcanum(4Mana) or Severin, the Mad Mage(need 5 Mana), play Cabal Scavenger. Now Dig Site cost 0. Play Dig Site in hand to return the one in play. repeat until you win.

Good Luck