I want to build a demon-hunting wizard and just read through the rules for binding outsiders. Here I found:
Once there, the outsider can pit its spell resistance as a check against the caster’s level, attempt to flee via dimensional travel, or attempt to overcome the spell by imposing its
spiritual presence with a Charisma check (DC 15 + 1/2 the caster’s level + the caster’s Charisma modifier).
Since usually wizards have not a very good charisma modifier I was wondering if there is a way to change this over to Int or Wis but could not find anything. Anyone who knows if this is possbile?