wanton lotus
The Devs make jokes about forgetting what episode numbers are Prime all the time. We need a Champion that cares about Prime Numbers. For example they could gain or give a multiplicatively stacking buff that increments every time you complete a Prime Numbered zone. It would ramp up quickly and level out in later zones, it could even have the next Prime Number listed in the effect.
If you need lore or flavor any Modron, Warforged, Clockwork Soul, or Quandrix mage could work. But even Egbert tracks absolute value without needing a math degree.
Prime. Number. Tracking. For. Justin.
slim compass