Brass Dragon Wyrmling

A brass dragon wyrmling on the party's side is a chatty teenager with wings. It is Chaotic Good, fluent only in Draconic, and physically about the size of a large dog. Most parties acquire one by accident: rescuing it from poachers, hatching an egg, agreeing to escort it back to a desert lair where its parent is waiting. The framing that earns the most table time is "we are babysitting a dragon", because the wyrmling will absolutely insist on coming along into dungeons it has no business entering.

In combat, lead with Fire Breath if it has the slot. The 20-foot line, 5-foot wide, DC 11 Dex save for 14 fire is your one big play, and recharge 5 to 6 means it'll likely come back. After that, the wyrmling is a Rend monkey at +4 for 7 slashing, which is fine support damage and not much else. The smarter line is Sleep Breath, the 15-foot cone, DC 11 Con save: a failure incapacitates, a second failure drops the target unconscious for a minute. Use it on the brute the party wants captured alive, since damage breaks the effect cleanly and an ally can wake them in fiction.

Speed matters more than damage at CR 1. Walk 30, burrow 15, fly 60. The wyrmling can scout above a forest canopy, dig under a wall, or yank a fallen PC out of a melee by grabbing them and flying them ten feet up. Treat it as a mobility multiplier for the party, not a damage dealer. With 22 HP and AC 15, it will not survive a real fight, so the party's job is to keep it out of cleave range. Sell that vulnerability the first time someone hits it with an arrow.

Let the wyrmling have one strong opinion per session. It hates lying, loves dawn, refuses to fight kobolds without checking why first. The opinions become campaign hooks faster than any stat ever will.

A hostile wyrmling almost always means a parent is nearby and angry, or a cult has hatched it under bad conditions and raised it cruel. Sell the setup. A wyrmling alone is a CR 1 fight, but the social context (a furious adult coming over the dunes by sunset, a cult that will retaliate if the party kills it) is what makes the encounter worth running.

Open with Fire Breath in the line, DC 11 Dex save, 14 fire on a fail. At CR 1 against tier 1 PCs, that's a lot of damage on a passed save and a near-kill on a fail. Use the wyrmling's fly 60 ft. to hover at 30 to 40 feet, just inside its line range and outside short bow range for the wizard. After the breath is spent, it'll dive for Rend at +4, but a smart wyrmling lands only on the soft target it can drop in one bite. With 22 HP and AC 15, it cannot trade hits with a tier 2 party, so play it skittish.

Sleep Breath is your cruelty option. Drop a paladin in the cone, two failed Con saves, and they're unconscious for the rest of the encounter unless an ally takes an action to wake them. The wyrmling is intelligent enough (Int 10) to use this on the strongest melee threat, then Rend the wizard while the party scrambles to revive the front line. Once Bloodied, it burrows. The 15 ft. burrow is slow, but the party usually can't follow into loose sand or earth, and the wyrmling lives to grow up resentful.

Let the wyrmling speak Draconic at the party in mid-fight. Even if no one understands, the players will remember that this baby was talking to them.