Blood magic Skill ID

Blood magic is one of Valheim's character skills, tracked under the internal ID Blood magic. Damage, Eitr and health drain when using Blood magic.

Experience is gained at 0.75 per skeleton hitting a creature, 1 per shield breaking from damage.

At max level (100) it grants +200% damage and knockback, +250% protection, -33% eitr usage, -33% health usage.

Adjust your level from the console with raiseskill "Blood magic" 10 to add 10 points, or resetskill "Blood magic" to wipe it back to 0.

Every Valheim skill ranges from level 0 to 100, and its bonus grows as the level climbs — the +200% damage and knockback, +250% protection, -33% eitr usage, -33% health usage above is the full value you reach at level 100. Blood magic earns experience at 0.75 per skeleton hitting a creature, 1 per shield breaking from damage, so it climbs fastest when you use it deliberately.

Dying is the catch: each death drains roughly 5% of your level in every skill, Blood magic included, so a hard-won level erodes quickly on a dangerous run. To claw it back without the grind, run raiseskill "Blood magic" 10 — that adds ten levels at once, and you can pass any amount (or a negative number to lower it). Prefer a clean slate? resetskill "Blood magic" wipes the skill back to 0.