Crater's page

Would appreciate some help with a backstory for a character....

The character is a Mwangi slave who was brought by a Cheliaxan Hellknight in Sargava. The knight used the slave as a sparring partner for his son, the two boys grew up together in this way.

The knights son at some point brings great dishonour upon his father and is disowned, with the slave earning the respect of the Hellknight and being treated as a kind of surrogate son in his place.

The question is what might the knights son have done to incur his father's wrath to this degree?

Do I have it correct that if a Druid (or other spellcaster for that matter) has ‘authoritative spell‘ feat, along with the two traits that reduce spell level for metamagic feats (metamagic master and magical lineage I think) then they can use the cantrip Detect Poison to prohibit one of the listed actions for one targeted creature with no save, no spell resistance, no attack roll and with unlimited uses?