Elementalist

The Elementalist has total control over fire and ice. They're able to avoid most hazards, control Droid weaknesses, and even infuse their weapons with frigid cold or blistering heat.

[0/4] Infusion - Gain 4 mana

[0/1] Enchant - If the room number is odd, make your held weapon deal cold damage and freeze all water and lava. Otherwise, Make it deal fire damage and melt water and lava.

It also starts the game with a burning spell and a freezing spell. These two spells cause Droids to either gain a weakness to cold or fire damage along with its own special ability which can be paired with its second ability enchant to deal more damage to Droids.