Fatigued Based Channeling
At a given level, all channelers have a certain level of weaves that they can cast up to without becoming fatigued. Once a channeler casts above this weave level, they must make a fortitude save (DC5 + weave level + no. above the level that they can cast without becoming fatigued) against becoming fatigued. Once the channeler has list his first fortitude save, he loose 1/4 of the maximum level of weaves that he could cast without over channeling (a 4th level wilder would therefor be able to cast up to 3rd level weaves without over channeling) - this penalty increases by 1/4 for every time he fails his fort save until the fourth failure at which point he can no longer cast any weaves without over channeling. Other fatigue effects apply. As a channelers ability increases, they gain a bonus to fortitude saves made to resist fatigue effects.

Level	Maximum weave	Fortitude Bonus
1	1	0
2	2	0
3	2	0
4	3	0
5	3	+1
6	3	+1
7	4	+1
8	4	+2
9	4	+2
10	4	+2
11	5	+3
12	5	+3
13	5	+3
14	5	+3
15	5	+3