Hearthpwn

I opened Maxima Blastenheimer and built a deck before coming on here. I'm low tier so my win rate does not matter. I'm pasting this here since I've not seen a maxima simply used as a finisher. 

This deck plays surprisingly well: you mulligan for phase beast or draw a phase beast, maxima. You aim to draw both phase stalkers before you play maxima, thereby guaranteeing big face damage. 

You either burn people out since the secret package is strong, or bring them low enough that maxima goes through taunts. 

While you don't make many minions, you do, sometimes, drop 8/8s on turn 5. This does not win the game by itself, but it does allow you to keep hitting the face with some chip damage. 

This deck is not complete, since I don't have all the cards. The abyssals stand for 12/12 dragon and 10/10 colossus of the moon. Tonks and protodrakes work, but anywhere above 4 big buys are too heavy to get carried by the core of the deck.