Suggestion has this line:
If you or any of your companions damage the target, the spell ends.
What counts as a companion?
This might sound silly, but I'm worried if a friendly NPC who tags along does count as a companion. Part of it is because the NPC is played by DM, and thus might ruin any charm based spell.
Is the definition decided by the target? Can I hide the fact that a character is in our party?
We walk as a group, with another ranger hiding in a separate location (thus we do not look like a group). If the ranger damages the target under Suggestion, does it fail?
Do NPCs fighting alongside us count as companions?
The king sends two guards to guard us. In response to an ambush, they (unknowingly it's been Suggested) attacked the target.
In a chaotic situation, can a target of Suggestion misidentify someone as my companion?
A tavern brawl. Party members involved in the "party". I've suggested a dwarf to go back to his home, then he got hit by another patron. This patron have casually talked with us, and seen by this dwarf before the brawl. Does Suggestion end because this patron (which is not our companion) hit the dwarf?