Many, most so far during the six chapter long battle scene that stretched from chapters 11-16 and featured twelve combatants by the time it ended. For examples:
Chrono using his usual methods to completely defeat, by himself, an opponent who had previously shown himself able to fight Fate and Arf two-on-one. Then he does the same thing to two upgraded versions of killer cyborgs that held off the main heroes for a good while. Then to one of Tsukiyomi's more powerful summons. Yeah, he gets a lot of these.
Fate piercing the shields of and being the only person to truly come close to defeating her mother.
Yuuno repelling an attack meant to be used against warships. It was fired at half-power and it took every ounce of energy he had to stop it, but still... And does it with a Badass Incantation
"I am Unbreakable." Yuuno intoned, running his hands through a complicated pattern in the air as he did so. "Before me, let the territory of my soul be defined, and let all those who trespass within it be repelled. Let this place be moved beyond time and space, untouchable and unassailable. Absolute Defense, Materialize."
Ah heh heh. You forget something. He did that without using a Device. He also held off Tsukuyomi without using a Device. Indeed, contrary to almost every other character in the story, Yuuno is a normal ferret, er, human without a Device. Who is still keeping up with everyone else.
Earlier in the story, Nanoha countering an area-of-effect illusion by blindfolding herself to block out the false images and fighting on pure instinct until she could gather enough power to simply blast it away.