Ok, we will go with that the succubus summoned is NPC (for now anyways) which is controlled by MistressVoluptas. So she has to try break free from magic circle (and post the roll in here as our IC thread plays as if Adrian had succeed).<br/><br/>However note; I have CL 10 with conjuration spells so save DC is actually 22 (10 + 10 CL + 2 Cha).<br/><br/>Also I have used magic circle vs evil to create specific calling diaghram (and as note I took 10 to check even if I auto succeed my spellcraft check even with rolling 1, but Adrian did not take chances);<br/><br/><div class="quoteheader"><div class="topslice_quote">Quote</div></div><blockquote class="bbc_standard_quote">You can add a special diagram (a two-dimensional bounded figure with no gaps along its circumference, augmented with various magical sigils) to make the magic circle more secure. Drawing the diagram by hand takes 10 minutes and requires a DC 20 Spellcraft check. You do not know the result of this check. If the check fails, the diagram is ineffective. You can take 10 when drawing the diagram if you are under no particular time pressure to complete the task. This task also takes 10 full minutes. If time is no factor at all, and you devote 3 hours and 20 minutes to the task, you can take 20.<br/><br/>A successful diagram allows you to <strong>cast a dimensional anchor spell on the magic circle during the round before casting any summoning spell</strong>. The anchor holds any called creatures in the magic circle for 24 hours per caster level. <strong>A creature cannot use its spell resistance against a magic circle prepared with a diagram, and none of its abilities or attacks can cross the diagram</strong>. <strong>If the creature tries a Charisma check to break free of the trap (see the lesser planar binding spell), the DC increases by 5.</strong> The creature is immediately released if anything disturbs the diagram—even a straw laid across it. However, the creature itself cannot disturb the diagram either directly or indirectly, as noted above. <br/></blockquote><div class="quotefooter"><div class="botslice_quote"></div></div><br/>I bolded the parts as reasons why I made calling diagram with magic circle vs evil (all the fancy carving and melting silver was not just for show).<br/><br/>So, succubus cannot use it's spell resistance vs the magic circle, and the charisma check roll DC to break free is DC 27 (so she needs roll 19 to succeed).<br/><br/>Now, the charisma roll in regards accepting the bargain, does it need also rolled or can MistressVoluptas simply choose accept the deal without rolling? Or is having true name threatened to be spilled to devils ears a +6 bonus to my charisma roll in negotiations?