the Jester
Legend
The familiar is being knocked out by the Druid biting it.
The druid bit the quasit, not the pseudodragon.
The familiar is being knocked out by the Druid biting it.
The druid bit the quasit, not the pseudodragon.
There is no Quasit in the opening setup, so I'm assuming that was a mistake.
You can't actually do non-lethal damage to planer creatures like familiars, demons etc, or constructs or undead.
According to the PH, the only limitation is that you must be making a melee attack. Where did you find this rule?
Most (all?) Planar beings return to their home plane upon dropping to 0.
Again- where is this in the rules? Find familiar and find steed state that familiars and (found) steeds disappear upon reaching 0, but I can't find any general rule to that effect. Neither the angel nor demon entry in the Monster Manual, for example, says anything to that effect, at least not on a once-over. Nor do I find anything that indicates that you can't render an undead or construct unconscious when you reduce it to 0 hit points.
The "rules" are in the fluff descriptions of the monster manual. They aren't written very strictly, though: Demons reform instantly on their home plane "when a lucky hero manages to drop a demon in combat" while a devil reforms "if it dies."Honestly, I haven't looked into it much. I think it was Devils mostly? I know Tiamat does.