Satyr

A satyr as ally is a guide through fey territory or a host who has decided the party is amusing. He speaks Common, Elvish, and Sylvan, so almost any party can hire him. The price is never coin. He wants a song, a dance, a confession, a kiss for a watchful nymph, or a story about a mortal love affair. Set the price up front and make the party pay it, because a satyr who is not paid will simply walk off mid-mission.

In combat alongside the party, he is a skirmisher. Mockery (DC 12 Wis, 5 psychic, 90 ft.) goes on whichever enemy looks most pompous, because that is the joke he is making. Hooves go on whichever enemy is closest to a cliff, a fire, or a window. Magic Resistance lets him stand in the AOE the wizard is about to drop, so the party's caster can play less carefully than usual. He has 31 HP and AC 13, so do not put him in the front line. He is the harasser.

Out of combat the satyr is the hook for fey scenes. He knows where the standing stones are, who the local archfey owes a debt to, and which mortals have walked into the wood and not come out. He will trade that information for the right favor and lie cheerfully about everything else. Treat any specific claim he makes as half true.

When the party finishes the agreed task, he leaves immediately, with a verse of song. If they call him back later, the price has gone up.

A satyr is the wrong kind of party guest. He runs at the party from a tree line playing the pipes, gets the ranger drunk before sunset, picks a fight at the bonfire, and then fights with his hooves and a string of insults. The combat stat block is small (31 HP, AC 13, CR 1/2), but the encounter is the scene around it. Set the satyr in a glade where he has Performance +6, an audience of forest creatures, and the moral high ground for whatever offense the party has caused.

Open with Mockery. DC 12 Wisdom save, 90 ft. range, 5 psychic on a fail. The DC is low, but the range means he can stand at the edge of bowshot and chip away while the party closes through difficult forest terrain. He should be moving the whole time at 40 ft., never letting a melee PC pin him. When a PC does close, hit them with Hooves at +5, average 5 bludgeoning, and push them 10 feet straight back. That push is the trick. He uses it to kick a fighter back into a thorn patch, off a ledge, into a deer pit, into the river. Build the terrain around the push.

Magic Resistance is the spike. Advantage on saves against spells means Sleep, Hold Person, Charm, and Suggestion all probably fail. Telegraph this once: the wizard's first save-or-suck spell shrugs off, and the satyr blows a kiss before going back to taunting. The party will adjust to nonmagical pressure, which is exactly the fight a satyr wants.

He runs as soon as he is hurt. Bloodied with no allies near, the satyr disengages into the woods at 40 ft. and is gone, calling back insults the whole way. The party will not catch him. He is back the next session, with a friend, and a grudge, and now somebody owes him a song.

Have the satyr name the offense before he attacks. "You felled my oak." "You killed the doe with the white forehead." "You came to my glade with iron in your boots." A satyr who attacks for no stated reason is a goblin in horns.