E=Mc2, 'Equation that redefined Reality': EX {Anti-Material}
Einstein's single most famous feat was the derivation of this equation, which proved that all matter was energy in another form. This equation now acts as Einstein's personal incantation to utilize his Noble Phantasm. Without invoking it's true name, he is able to transmute objects into energy, as long as they are not larger than a marble. He uses this to turn motes of dust around him into beams of light that lance out at his opponents. In addition, he can turn objects into bursts of heat or even kinetic force if necessary. This ability does not work on transmuting objects that are objects of Mystery, as magecraft is something that [defies reality], rendering it immune to a noble phantasm based on reality's basic laws. Invoking this noble phantasm's true name allows for the reverse of this effect, to turn energy into matter. This allows Einstein to turn his opponent's kinetic energy into small motes of matter, slowing them, or even turn the heat in the air into motes of dust, freezing the air. It also removes the limits on size, however, the larger the object, the longer it takes to transmute, time increasing at an exponential rate. an object the size of a car would take a day, and be able to wipe out a fortress. He can only transmute objects within a hundred meters of him.
This NP is most useful as a basic weapon, and as a method of battle field control.
Relativity, 'Curves of Space-Time': B {Anti-Reality}
This noble phantasms allows for the manipulation of space. Using it, Einstein can manipulate space to curve what would normally be absolutely straight, such as a laser. He can cause objects to swerve around where they should have gone. However, it has greatly decreased capability against objects, spells, and effects of Mystery, as they are said to [defy reality]. He can still cause them to veer off course over long distances. This NP can also be used to create spaces of enhanced movement, allowing Archer to move superhumanly fast between two set locations. This can be inverted, to cause a course of movement to become difficult to traverse, as space itself contorts to slow one's path. If summoned as caster, this would be EX.
Atomic Bomb, 'Oh Brahmastra, be mastered by Man': A++ {Anti-Fortress} [NOTE: Yes, this is a degraded copy. The true NP would be EX in rank, and be kinda like Solomon's anti-humanity NP. But with nukes.]
The atomic bomb was the first machine used to be fully based on Einstein's discoveries. It was a weapon of unparalleled destruction, and it nearly caused the Human Race to wipe itself out in the tensions of the Cold War. Einstein, as the discoverer of the theories that allowed for it's existence, possesses a degraded copy of this Noble Phantasm, which would normally belong to the wraith/Almost-HS Oppenheimer. It materializes as a simple box, that Einstein carries with him at all times. When opened, there lies a small dart on the inside. This dart, coupled with the unleashed true name, begins to glow with prana, and flies up in the air, entering orbit. Then, it descends upon the target, and upon impact, unleashes an explosion of ludicrous power. Everything in the radius of the blast has the concepts of 'Death', 'Annihilation', and 'Poisoning' imposed upon it. This means everything, including magecraft. Anything that does not have a way to escape the blast, such as Avalon, which would shield it's bearer within it's dimension, would either die[Does not effect beings without a concept of death], be rendered into dust[Would effect pretty much everything], or be poisoned if they managed to summon a barrier that shielded them from the blast. The poisoning would slowly decrease their parameters and inflict excruciating pain before death. Curses, blessings, and any other established enchantment or magecraft within it's radius would be stripped away, unless they had something living to anchor them. This does not include Servants, as they count as living things.
Einstein absolutely hates this NP with a driving passion, as it represents how his science was ultimately a tool for war. He will not use it unless faced with a truly terrifying opponent, or compelled to with a command seal.
The Atomic Bomb, was in fact, a science-derived brother of the Brahmastra, an ancient divine weapon. It is not a fake or copy, as they were based on fundamentally different methods of execution, but nonetheless, the Atomic Bomb's effects mirror the effects and usage of the Brahmastra and it's enhanced versions.