From Pathfinder Lost Omens Cheliax, Infernal Inheritance, which isn't enabled.

Chiardmar Steed

FEAT 6

UNCOMMON CHAMPION COMMANDER DRUID RANGER

Prerequisites horse animal companion

Access You're from Nidal.

Your steed is one of the free-spirited wild horses of the Atteran Hills. Your horse animal companion gains a +5 foot status bonus to its Speed and ignores the first 10 feet of difficult terrain it moves through each turn.

Special Your horse animal companion can't gain the benefits of a different breed, such as Nidarrmar Steed.

Pathfinder Lost Omens Cheliax, Infernal InheritanceORC