Dragonrend

Choose one draconic creature you can see within range. Smoky strips of magical energy loop around the creature. The dragons’ flying speed is reduced to 0 feet, and walking speed reduced to 20 feet for the spell’s duration. A Draconic creature affected by this spell violently descends at 100 feet per round, taking fall damage, until it reaches the ground or the spell ends. The target must succeed on a wisdom saving throw, or it suffers from exhaustion for ten minutes. The spell lasts for one hour, or until it is dispelled by the caster

spell preparation; the spell must be cast with a scroll of Elder Magic. The scroll must be read allowed, and upon casting the scroll is destroyed.