Necrobinder Soul vs Doom: The Ultimate Math Guide

# Necrobinder Soul vs Doom Strategy\n\nIn **Slay the Spire 2**, the Necrobinder introduces a unique dual-resource system. Understanding the interaction between **Souls** and **Doom** is critical for high-ascension play.\n\n## The Core Loop\n1. **Harvesting Souls**: Use cards like *Soul Reap* to build your resource pool.\n2. **Applying Doom**: Doom acts as a delayed damage multiplier.\n3. **Expelling**: When you expel souls at a doomed enemy, the damage is calculated as `Base * (1 + Doom/10)`.\n\n## Pro-Tip\nAlways prioritize Doom on bosses before your big Soul Expel turn. Our **STS2 Calculator** helps you find the exact lethal breakpoint.