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Message: <blockquote data-quote="poilbrun" data-source="post: 2101140" data-attributes="member: 532">Hello all!Do any of you have an house rule regarding Concentration checks to cast defensively? Once a caster has reached a certain point, if he has maxed out his Concentration skill, he cannot fail his check to cast defensively, even for high level spells. I find it sad that even facing a very powerful fighter or monster, the caster does not care at all.It just happened in my games that the cleric was separated from the group and had to face the cohort of the main villain. He was down to 20 hp, I was already thinking "cool, a prisoner!", when he casted heal defensively. Bam, 100 hp! He did it twice, and of course my fighter could not cure himself since taking a potion provokes an attack of opportunity. End result: the cleric defeated a fighter two levels higher than him.I was thinking maybe adding the BAB of the enemy to the check, but that would create some problems too: first of all, it basically means that no matter what level the caster is, it will always be as difficult to cast a spell of a given level if he faces a fighter of the same level; second, it nearly forces every caster to max out his concentration skill, knowing that doing so only just cancels the bonus that fighters automatically gain; third, it gets complicated if the caster has several enemies with different BAB threatening him; finally, it forces a revision of the base DC, other wise high-level spell are nearly impossible to pull off.Another idea I had was to have the concentration roll act as an AC. To see if he gets an attack of opprotunity, the character/monster that threatens the caster rolls an attack roll against 10 (or 15, would have to be playtested) + result of Concentration check - spell level. If he/it succeeds, he gets an attack of opportunity and resolve it normally. This looks good but adds complexity and one roll per enemy threatening the caster.Any comment or idea?</blockquote>

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