Soul Fire

Description
Fire a projectile, dealing 60 damage on hit. If it kills an enemy, Soul Fire's damage is increased by 20, this bonus is carried over to future fights. Consume on cast.

Strategy and Synergy
Soul Fire synergizes well with smaller decks and decks that have lots of ways to continue a fight for a long period of time, such as Shield, as this lets you more consistently increase the power of Soul Fire without losing significant health to do so.

After just 7 fights, Soul Fire can become comparable in power level to similar 2 mana cost spells, such as Flint Shot and Cryokinesis, but without being conditional on other things such as Flow and Frost. The key issue of Soul Fire is that it is consumed on use, meaning that you must be very careful to hit your target when you cast it in an important fight. Chrono Saffron can make great use of this with Wristwatch. Spells like Time Stop and Entangle can help you ensure you land your shot too.

Trivia
Soul Fire mirrors the nature of a bonfire. The more fuel that is added to them, the stronger they become.