Sunday, April 19, 2009

An alternate spellcasting system (inspired by Chainmail), Draft 1

While thinking about Athanor, I found myself looking at the old Chainmail magic rules and thinking about using the Chainmail magic difficulty rules in Athanor in combination with modified spell lists. Using the Chainmail rules as a basis, I came up with the following table:


To use a spell, roll a d20 against the target number listed below:

Spell Spell Caster Level
Level Effect 1-2 3-4 5-6 7-8 9-10 11+
----- ------ --- --- --- --- ---- ---
1 I 16+ 14+ 12+ 10+ 8+ 6+
D 12+ 10+ 8+ 6+ 4+ 2+
N 11- 9- 7- 5- 3- 1

2 I 18+ 16+ 14+ 12+ 10+ 8+
D 14+ 12+ 10+ 8+ 6+ 4+
N 13- 11- 9- 7- 5- 3-

3 I 20 18+ 16+ 14+ 12+ 10+
D 16+ 14+ 12+ 10+ 8+ 6+
N 15- 13- 11- 9- 7- 5-

4 I n/a 20+ 18+ 16+ 14+ 12+
D 18+ 16+ 14+ 12+ 10+ 8+
N 17- 15- 13- 11- 9- 7-

5 I n/a n/a 20+ 18+ 16+ 14+
D 20 18+ 16+ 14+ 12+ 10+
N 19- 17- 15- 13- 11- 9-

6 I n/a n/a n/a 20+ 18+ 16+
D n/a 20 18+ 16+ 14+ 12+
N n/a 19- 17- 15- 13- 11-


Spell Effect:
I = Immediate -- spell takes immediate effect.
D = Delayed -- spell delayed to next turn
N = Negated -- spell does not work.

My thoughts on making this work:

  • I think there needs to be some risk to failure, and thus some penalty for N results.
  • I need to rethink spell lists and what level each spell is, since the removal of Vancian casting may change the balance of spells at each level.
  • I also need to rethink the mountebank/rogue spell casting rules (or eliminate them and live with just fighters and magic-users, which is fine, too.)