Applejack, AKA Mistress Mare-velous. She has a lasso that she can psychically control. She also makes use of restraining horseshoes called "hoofarangs".

Origin:

Hailing from the ancient lost city of Alfalfis, Mistress Mare-velous is here to save the day! Every filly of Alfalfis is born with super strength, but the island's elders wish to remain secret from the rest of the world. Mistress Mare-velous believes their powers should not be hidden, but used for good, so she fled to aid the citizens of Maretropolis. She is psychically connected to her lasso, and it obeys her every command. The other Power ponies know when the going gets tough, Mistress Mare-velous has got their back!