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Immortal 3rd Edition Player's Guide
How to Spend Experience Points
(from
Immortal 3rd Edition Player's Guide, starting on page 220)
To increase any of the main attributes (Strength, Agility, Endurance, Perception, Willpower, Presence, Spirit)
up to a rating of 6: Spend EXP equal to twice the next rating. So increasing strength from 4 to 5 will cost (5x2) 10 experience points.
Raising Spirit beyond 6: Spend EXP equal to four times the next rating. So increasing spirit from 6 to 7 will cost (7x4) 28 experience points.
Raising the other main attributes beyond 6 is a gigantic pain in the ass that requires a full Ark (the place where you store immaculum to regenerate yourself), plus an additional investment of immaculum equal to twice your Spirit rating. After that, you must spend EXP equal to three times the new rating. For example, increasing Willpower from 7 to 8 will cost (8x3) 24 experience points. Finally, you must conduct a somewhat painful ritual where you spill your life force into your ark and regenerate yourself, gaining the increased attribute at the same time. Your ark is broken in this process and you'll need to attune yourself to a new one and fill it all over again. Because of the great leapin' pain in the neck this is, I recommend waiting until you want to increase a couple attributes into the mythic level and save yourself some time.
To Increase or Obtain Skills (including serenades)
The Base Cost of the skill is how many experience points you need to spend to get the skill at rank 1.
To increase the skill, use the chart on page 223, (reproduced below)
To gain an additional focus for a skill, you must pay the rank 2 cost of the skill. You cannot have a number of foci higher than your rank in the skill. Serenades are slightly different: you may not gain additional foci until you have rank 3 in the serenade.
To Increase or Obtain Natures
A new nature costs 5 experience points to increase if it is common to your Species or Tribe (if you have a tribe other than Solitare). A new nature costs 10 experience points to increase if it is not common to your species or tribe. Some natures (like Hyper) have multiple levels. It costs 5 (or 10 if not common to you) experience points to raise each level.
Experience Point Cost Table for Skills (reproduced from page 223 of the Player's Guide)
Base Cost Rank 2 Rank 3 Rank 4 Rank 5
2 +3 +5 +8 +13
3 +4 +7 +11 +18
4 +6 +10 +16 +26
5 +8 +13 +21 +34
6 +10 +16 +26 +42
7 +12 +19 +31 +50
8 +14 +22 +36 +58