Can Iron Body and Iron Wall (Spearman ability) be used at the same time?
Basically, iron body and iron wall do not stack and it is matter of the order you use them. Say, you mastered iron body(weapon D +40) and iron wall(weapon D and magic D +20 each). If you use iron body first(now WD +40) and then use iron wall, now it is only WD+20 and MD+20.If you use iron wall first(now WD +20 and MD +20) and then use iron body, now it is WD +40 and MD +20. Most of the skills work like this.