Haven't checked to see if this applies to other Clerics, but Clerics of Talos have an additional dialogue option at the third Wisdom save, allowing a DC 10 instead of a DC 20.
Third book page
Not only Shadowheart as a cleric of Shar gets this additional option for the third page. Other clerics with an evil god, e.g. Talos, also get this option. Shadowheart as a paladin also gets this option.
Tharchiate Codex
After reading the Tharchiate Codex reader of the Necromancy of Thay will receive Danse Macbre after successful completion of a wisdom check.