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Defensive Casting
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<blockquote data-quote="KarinsDad" data-source="post: 22574" data-attributes="member: 2011"><p>I agree with Milo.</p><p></p><p>It is not that difficult, even without feats, for a spell caster to be very good at this. With a 14 in Con, the best chances (i.e. taking the skill every time) at each level for his highest level spells are:</p><p></p><p>1 55%</p><p>2 60%</p><p>3 60%</p><p>4 65%</p><p>5 65%</p><p>6 70%</p><p>7 70%</p><p>8 75%</p><p>9 75%</p><p>10 80%</p><p>11 80%</p><p>12 85%</p><p>13 85%</p><p>14 90%</p><p>15 90%</p><p>16 95%</p><p>17 95%</p><p>18 100%</p><p></p><p>Now on the surface, this may seem reasonable except that we are considering a caster who does not take Combat Casting, who has a Con of 14 which does not improve, and that these are his highest level spells. Consider first level spells for this same character:</p><p></p><p>1 55%</p><p>2 60%</p><p>3 65%</p><p>4 70%</p><p>5 75%</p><p>6 80%</p><p>7 85%</p><p>8 90%</p><p>9 95%</p><p>10 100%</p><p></p><p>Now, consider first level spells for this same character with Combat Casting:</p><p></p><p>1 75%</p><p>2 80%</p><p>3 85%</p><p>4 90%</p><p>5 95%</p><p>6 100%</p><p></p><p>or even his highest level spells:</p><p></p><p>1 75%</p><p>2 80%</p><p>3 80%</p><p>4 85%</p><p>5 85%</p><p>6 90%</p><p>7 95%</p><p>8 95%</p><p>9 100%</p><p></p><p>Or consider a spell caster with the Endurance spell cast on him.</p><p></p><p>Or consider a Bard, a Paladin, or a Ranger.</p><p></p><p>Or consider the fact that a spell caster can move back 5 feet to avoid AoOs completely in most circumstances and you will realize that the chances of losing a spell due to being in combat are extremely slim.</p><p></p><p>Or consider the fact that a lot of groups have fighters, monks, or rogues moving through combat trying to suck up AoOs.</p><p></p><p>Or consider the fact that a spell caster can choose to not cast defensively due to his protections (Shield of Faith, Magic Vestment, Shield, Mirror Image), and an AoO might miss. And, even if it hits, he still often has a fair chance of making a Concentration roll to still get the spell cast (unless grappled where he gets an AoO on the grappler usually to prevent it).</p><p></p><p>The point is that the chances are extremely high to cast spells in combat, even if he merely takes the skill every level and never boosts it with a feat.</p><p></p><p>When compared to the chances of an archer not getting AoOed in a threat area, these are extremely high.</p><p></p><p>Yes, once in a blue moon, a spell caster will lose a spell. But, it should be extremely rare that it happens.</p><p></p><p></p><p>As for a suggestion for Milo, I use a totally different system based off of the variant Tumbling rule from S&S.</p><p></p><p>If the cast defensively DC is missed, then you do not lose the spell. But, your opponent gets an AoO.</p><p></p><p>If the cast defensively DC is made, it merely sets the DC for a Reflex Save for the opponent. If he makes it, he still gets an AoO.</p><p></p><p>If the AoO hits, then another concentration roll is required to still get the spell off (just like normal). The DC is dependent on what happened, damage, grapple (which can automatically prevent a spell), whatever.</p><p></p><p>So, a high level spell caster might roll a 28 on his casting defensively, but even a first level character can roll a 20, make the Reflex save and take a poke at him. And, high level opponents have a better chance of AoOing than low level opponents as opposed to the abilities of the opponents having no bearing on it whatsoever. The chances of a god AoOing a spell caster with the core rules cast defensively rules are idential to a non-combatant Kobold's. Hmmmm.</p><p></p><p>So, there is no 100% chance of success with my system, there are only high chances of success. And, there shouldn't be 100% success chances. It's random chaotic combat. A spell caster should not always be able to do his best when being threatened.</p></blockquote><p></p>
[QUOTE="KarinsDad, post: 22574, member: 2011"] I agree with Milo. It is not that difficult, even without feats, for a spell caster to be very good at this. With a 14 in Con, the best chances (i.e. taking the skill every time) at each level for his highest level spells are: 1 55% 2 60% 3 60% 4 65% 5 65% 6 70% 7 70% 8 75% 9 75% 10 80% 11 80% 12 85% 13 85% 14 90% 15 90% 16 95% 17 95% 18 100% Now on the surface, this may seem reasonable except that we are considering a caster who does not take Combat Casting, who has a Con of 14 which does not improve, and that these are his highest level spells. Consider first level spells for this same character: 1 55% 2 60% 3 65% 4 70% 5 75% 6 80% 7 85% 8 90% 9 95% 10 100% Now, consider first level spells for this same character with Combat Casting: 1 75% 2 80% 3 85% 4 90% 5 95% 6 100% or even his highest level spells: 1 75% 2 80% 3 80% 4 85% 5 85% 6 90% 7 95% 8 95% 9 100% Or consider a spell caster with the Endurance spell cast on him. Or consider a Bard, a Paladin, or a Ranger. Or consider the fact that a spell caster can move back 5 feet to avoid AoOs completely in most circumstances and you will realize that the chances of losing a spell due to being in combat are extremely slim. Or consider the fact that a lot of groups have fighters, monks, or rogues moving through combat trying to suck up AoOs. Or consider the fact that a spell caster can choose to not cast defensively due to his protections (Shield of Faith, Magic Vestment, Shield, Mirror Image), and an AoO might miss. And, even if it hits, he still often has a fair chance of making a Concentration roll to still get the spell cast (unless grappled where he gets an AoO on the grappler usually to prevent it). The point is that the chances are extremely high to cast spells in combat, even if he merely takes the skill every level and never boosts it with a feat. When compared to the chances of an archer not getting AoOed in a threat area, these are extremely high. Yes, once in a blue moon, a spell caster will lose a spell. But, it should be extremely rare that it happens. As for a suggestion for Milo, I use a totally different system based off of the variant Tumbling rule from S&S. If the cast defensively DC is missed, then you do not lose the spell. But, your opponent gets an AoO. If the cast defensively DC is made, it merely sets the DC for a Reflex Save for the opponent. If he makes it, he still gets an AoO. If the AoO hits, then another concentration roll is required to still get the spell off (just like normal). The DC is dependent on what happened, damage, grapple (which can automatically prevent a spell), whatever. So, a high level spell caster might roll a 28 on his casting defensively, but even a first level character can roll a 20, make the Reflex save and take a poke at him. And, high level opponents have a better chance of AoOing than low level opponents as opposed to the abilities of the opponents having no bearing on it whatsoever. The chances of a god AoOing a spell caster with the core rules cast defensively rules are idential to a non-combatant Kobold's. Hmmmm. So, there is no 100% chance of success with my system, there are only high chances of success. And, there shouldn't be 100% success chances. It's random chaotic combat. A spell caster should not always be able to do his best when being threatened. [/QUOTE]
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