I used this deck, won my first game. Not sure if it's good, but it's good enough.
### Brawl Deck
# Class: Mage
# Format: Wild
#
# 1x (1) Mana Wyrm
# 1x (2) Frostbolt
# 1x (2) Primordial Glyph
# 1x (2) Sorcerer's Apprentice
# 1x (2) Unstable Portal
# 1x (3) Flamewaker
# 1x (3) Ice Block
# 1x (4) Fireball
# 1x (4) Polymorph
# 1x (7) Flamestrike
#
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#
# To use this deck, copy it to your clipboard and create a new deck in Hearthstone