Spellcasting. The knight is a 1st-level spellcaster. Its spellcasting ability is Charisma (spell save DC 12, +4 to hit with spell attacks). It knows the following sorcerer spell:
Cantrips (at will): gust, light, message, ray of frost
1st level (2 slots): expeditious retreat, feather fall
Multiattack. The knight makes two melee attacks.
Longsword. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit:6 (1d8 + 2) slashing damage, or 7 (1d10 + 2) slashing damage if used with two hands.
Spear. Melee or Ranged Weapon Attack: +4 to hit, reach 5 ft. or range 20/60 ft., one target. Hit:5 (1d6 + 2) piercing damage, or 6 (1d8 + 2) piercing damage if used with two hands to make a melee attack.
The Feathergale Knights are ambitious, wealthy folk from cities such as Waterdeep seduced by the air cult's promises of power. From the backs of hippogriffs or giant vultures, they survey the land around Feathergale Spire, guarding the entrance to the air cult's hidden temple.