Rockhoof

Rockhoof is a male Earth pony and figure of Equestrian legend first mentioned in season six's The Crystalling - Part 2 as the subject of a spell called 'Rockhoof's Rapport'. He makes his first physical appearance in My Little Pony: Legends of Magic Issue #2, and he also appears in the season seven episode Campfire Tales. In both stories, he saves his home from a volcanic eruption with help from a magical surge, and overcomes a lounging lifestyle in order to save his home from a Cherufe searching for it's baby.

Role in the series
Rockhoof is built up more in the SAFA series, revealing that the surge that gave him his strength and legend was from a magical reservoir owned by an ancient onocentaur sorcerer, and the Charufe's young was taken and hidden by Magmatacus in his underground lava prison as a means to trigger one of the focal points he needs to free himself since Flash Magnus defeated him and had him imprisoned in Mount Penance.