Well lets see, I don't have any from M&M, but I got a few from Shadowrun.
From an insane character called Alpha 21, who carried at all times, a minimum of five of every kind of grenade in existence attached to the outside of his armor. He was constantly blowing things up using the grenade launcher mounted on his arm, and was the only source of damage for another member of the group through the entire campaign. One mission, we had to get into a building undetected, so my reaction was:
"Ah! Discretion... My only weakness..."
Another character of mine, a tiefling fire mage of insane, god like power, who was so adept with fire that he was not effected by it, (though he goes through so many outfits, it's not funny). At one point he had been captured and taken to another plain of existence we called "seventh hell", and was being torchered by a Balor, in a building made of a very unique wax type material. I had tried to punch him, but he attached me to the wall by slamming my horns through it, so I resulted to:
"I'm gonna cast a force 44 napalm spell, at the hottest temperature I can."
"You're in hell, and you want to try and hurt a guy who you've been calling satan, using fire? Do you not realize that makes no sense?"
"I'm not going to attack him, I'm going to attack him, I'm going to attack the building we're in."
The building instantly started to melt, and I fell out of the wall, pushed a bookcase on him, and turned to the door, (which had fused into the melting wall by this point), and burst through, to the outside... The building melted, trapping him, and he died of suffocation.
And Merriks elf sister:
"You really think you even stand a chance against me? I defeated you last time we met."
"You didn't defeat me, because I'm standing here in front of you now."
"Dude, I shot you in the face with a shotgun, threw you out of a helicopter, and then dropped a fraking building on you. Nine out of ten cultures around the world would count that win as being in the 'epic' category."