I managed to make a 90% winrate mage deck, using elemental synergy and value. I have custom json files for the discover of kalimos, as well as fireball, frost bolt and flame geyser.
its made with only commons and rares, so new players can use it to bot, but it takes a long time to win if thats a problem.
Decklist
### poop
# Class: Mage
# Format: Standard
# Year of the Mammoth
#
# 2x (1) Mana Wyrm
# 2x (2) Arcanologist
# 2x (2) Flame Geyser
# 2x (2) Frostbolt
# 2x (2) Shimmering Tempest
# 2x (3) Arcane Intellect
# 1x (3) Igneous Elemental
# 2x (3) Mirror Entity
# 1x (3) Stonehill Defender
# 1x (3) Tar Creeper
# 2x (4) Fire Plume Phoenix
# 2x (4) Fireball
# 2x (4) Water Elemental
# 2x (5) Servant of Kalimos
# 2x (6) Faceless Summoner
# 2x (7) Firelands Portal
# 1x (7) Flamestrike
#
AAECAf0EBOwHm8ICysMCxscCDcMBuwKLA5UDqwSWBcWuAqO2Ar/BAsHBAqzCAsLDAsfHAgA=
#
# To use this deck, copy it to your clipboard and create a new deck in Hearthstone
Currently 170-16
Was perviously 89% with around 300 games but i reset it for every new version of the bot, but it was without the elementals.