Marvel: Molecular Acceleration

Jeanne-Marie Beaubier (Aurora)
She has the ability to accelerate the molecules within an inanimate object or al iving being by touch, causing the target to tear itself apart from the subsequent stress generated upon it.

Pietro Maximoff (Quicksilver)
Through the course of his life as a mutant, his super speed has granted him numerous abilities. One of the very peculiar ones was being able to vibrate his molecular structure at high speeds. Different writers used it for different things that were often absurd or completely ignored it. He has demonstrated the full effect which enables him to destabilize atomic matter by accelerating its molecules often causing it to fall apart or explode, usually by touching it. It is unknown if he can do this from a distance like his nephew, Thomas Shepherd. He also had the ability to fly for short periods of time.

Remy LeBeau (Gambit)
Remy has the power to take the potential energy stored in an object and convert it to kinetic energy thus "charging" that item with explosive results. He prefers to charge smaller objects, such as his ever-present playing cards, as the time required to charge them is greatly reduced and they are much easier for him to throw. The only real limitation to this ability is the time required to charge the object. The larger it is, the more time it takes. He can charge a rock as big as a small house in a matter of seconds. Most charging takes place through direct skin contact. The power of his explosions is dependent on the mass of the object he is charging; for example, a charged playing card explodes with the force of a grenade. Remy can also use his powers to accelerate an object's kinetic energy instead of converting its potential energy. For example, he can charge his bo staff with enough power to level a house.

Thomas Shepherd (Speed)
He can also generate hyper-kinetic vibrations that accelerate the molecules in matter, causing any solid object he directs his vibrations at to explode.