My own miracles where a number of minor healings, albeit impressive to me. Depression was always beyond reach and headaches where hit and miss. Probably the most memorable miracles I was able to perform as a Mormon priesthood holder where the reversal of an 8 cm dilation during Janets pregnancy with Sven and the rapid healing (48 hours) of Jeannies split Juvila. My healing blessings where performed in the name of Jesus, but attributed by invocation to the Melchisedek Priesthood. In hindsight I believe that Jesus was honoring my faith in him and overlooking my belief in what I know regard a phantom claim to priesthood rights that where never bestowed on me by Jesus. And while I have participated in Temple Rituals I never experienced dark forces as a Mormon, except for getting depressed about the ambiguation of the Mormon Truth claims with its bright and dark sides.
Here is a wide range of testimony and opinions share by others.
(1) Joseph Smiths Time
(2) Catholics discuss it
(3) ExMormon discussed it
(4) Testomy 1 - Healed and died
(5) Testimony 2 - Lion attack