Basic High Justice Grimstone Mage Deck (Normal Mode)

Strategy

Mulligan for as aggressive a start as possible with Frostbolt, Kobold Geomancer, and River Crocolisk having the highest priority. Despite having a deck full of Legendary cards, Grimstone only has a handful of cards he can play in the early turns, like Bloodmage Thalnos, Millhouse Manastorm, or Nat Pagle. So, you only need to properly navigate the early turns to win the game.

It should be noted that we pushed Grimstone to fatigue with this deck, in order to obtain his complete card list, so you should really have no problem defeating him.