Hi! I'm a fan of anything in standard that isn't Bant Company, so let's see if there's anything we can do to make this more powerful (and in budget of course). First thing I notice is
Chaplain's Blessing, which i can combo's nicely with
Lone Rider. Another option that should be more versatile is
Blessed Alliance. Still can gain enough life to Flip Pale Rides, but has added usefulness later in the game for spot removal or untapping creatures in combat.
Only other card that Jumps out is
Alms in the Vein. I'm guessing that's also to combo with
Lone Rider. I think more copies of
Collective Brutality would be better here (not sure if that's outside budget or not) since it gives you more often and will still force a flip if
Lone Rider attacks. Other option would be
simple combat tricks like
Grotesque Mutation,
Tenacity, or
Aim High to surprise pound through, gain life and flip
Lone Rider (
Aim high obviously only flips him if it's cast on him, but gives a bit of protection from fliers).
Lastly,
Linvala, the Preserver could be a nice sideboard card against burn decks and flyer heavy decks. Just something to think about.
I hope you found this helpful! Good luck and Happy Hunting