Create Mount

You spend one minute muttering incantations while sprinkling emerald dust over a Large or larger sized object, such as a boulder, tree, or wardrobe.  Upon the spell's completion, the selected object begins to change shape until it roughly resembles the shape of a horse or other common mount.  The object is now considered a large construct, and for the next 8 hours it can be mounted and ridden by up to two Medium-sized or four Small-sized creatures.

The transmuted mount has an AC of 10 + your spellcasting ability modifier, and hit points equal to 20 + your level.  It has a movement speed of 60 feet, and ignores the movement penalty incurred by difficult terrain.  If it has to make an ability check or saving throw, the mount uses your spellcasting ability modifier for every roll, and your proficiency bonus if it is a skill or saving throw that you are proficient in.  As a construct the mount is immune to being charmed, frightened, poisoned, paralyzed or petrified, and is immune to poison damage.  In combat the mount acts on your initiative, and will follow your mental commands.  It can only take the Dash, Disengage, or Dodge actions.  The mount reverts to its original form at the end of the 8 hours, or earlier if it is reduced to 0 hit points or if you take an action to dispel it.

At Higher Levels:  When you cast this spell using higher-level spell slots, the number of mounts that you can create and maintain at one time increases:  two mounts using a 5th-level spell slot, 3 mounts using a 7th-level spell slot, and 4 mounts using a 9th-level spell slot.  Each additional mount created adds one minute to the casting time of the spell.