Levels
Each level's effects, requirements and unlock method are listed below.
- Level 1 — Inflicts ? damage per second for 10s. Becomes available once you find or buy its Manual.
- Level 2 — Inflicts ? damage per second for 12s. Requires player level 5 with 2 points invested in this ability. Becomes available once you find or buy its Manual.
- Level 3 — Inflicts ? damage per second for 14s; when the target dies, the effect jumps to a different enemy. Requires player level 10 with 4 points invested in this ability. Becomes available once you find or buy its Manual.
- Level 4 — Inflicts ? damage per second for 16s; when the target dies, the effect jumps to a different enemy. Requires player level 15 with 6 points invested in this ability. Becomes available once you find or buy its Manual.