Want to geek out on this all science like, then fine.
Based on the words brought up so far:
Acceleration = The rate of change of velocity per unit of time.
Something that has accelerated, that is increased it's velocity, by definition is moving faster. As something moves faster and strikes an object the force or amount of energy transferred to the object increases, thus increases the amount of damage done to the object. The object provides an equal amount of counter force thus likely damaging the striking object more as well. So the effect of in this game that is of the Card and Ability of Acceleration is moderately accurate.
Adrenaline is a hormone and a neurotransmitter. It increases heart rate, constricts blood vessels, dilates air passages and participates in the fight-or-flight response of the sympathetic nervous system. This allows a biological creature to move faster, perform greater feats of strength, and ignore pain, through this increased heart rate and constricted blood vessels, and increased oxygen. Sometimes this is to the detriment to the creature, such as cases of spreading poison through the body faster. Their are also Adrenaline junkies who get addicted to Adrenaline and traumatic experiences often will through off the natural balance of the neurotransmitters in brain function and often continue to operating with higher than normal Adrenaline levels. Once again the card is not too far off from the truth. Poison spreads faster, the creature gains more strikes by moving faster. One can argue some creatures might do more damage; but, that's about it. The game does not define how long a turn lasts, and cases of adrenaline dumps can last hours in some cases nor is their representation of a creature feeling pain, so the ignoring of pain is also not noticed.
Aether: According to ancient and medieval science aether is the material that fills the region of the universe above the terrestrial sphere. It was to be the pure air the God's would breath. Since science has dis-proven just about all of this, the term has changed to Ether,and are a class of organic compounds that contain an ether group — an oxygen atom connected to two alkyl or aryl group. Which would actually be part of
and not dimensional shielding. The element itself completely fails
Antimatter: In particle physics, antimatter is the extension of the concept of the antiparticle to matter. An antiparticle is a particle with the opposite charge as a normal particle. So take a set of 2 9V AC batteries for example. Align them positive to negative in the correct direction, and the electron current flow goes in the correct direction resulting is a total of 18Volts of potential energy. Now switch one of them and you now have 0V of potential energy, reverse both of them and you now get -18Volts of electricity resulting often electronics getting damaged. This is the idea behind the antimatter card, it is switching the the polarity of the object. So instead of 3 damage you now have -3 damage. The cards. The game mechanics don't quite fit since the terms are healing and damage, not negative and positive charge, however on a math level it kind of works.
Black Hole: A black hole is a region of spacetime from which nothing, not even light, can escape. The theory of general relativity predicts that a sufficiently compact mass will deform spacetime to form a black hole. Around a black hole there is a mathematically defined surface called an event horizon that marks the point of no return. Those things outside of the event horizon can escape or are often accelerated. These are usually found in the center of galaxies. Their is one in ours. Some theories predict the otherside of a blackhole exists another Universe pocket, thus feeding higher state energy into that universe birthing it. As blackholes pull in more matter and energy, the more massive they become increasing their gravity. So the fact that blackhole in ETG sucks some electrum away makes sense, the energy simply got to close to the event horizon. This energy then increases the gravitational pull thus making the blackhole stronger. In a kind of round about way, you can say the elemental using gravity just got more gravity, thus stronger thus healing. It's a stretch but it kinda works.
Butterfly Effect: In chaos theory, the butterfly effect is the sensitive dependence on initial conditions; where a small change at one place in a nonlinear system can result in large differences to a later state. So, in effect butterfly effect, allows a creature to briefly flip back in time creating a nonlinear system resulting in a change in something else. Things can exist or not exist or change identity completely. Only one of these is represented in the game mechanics, things get destroyed by no longer existing, so it's kind of Butterfly Effect with less possible outcomes.
Maxwell's Demon: In the philosophy of thermal and statistical physics, Maxwell's demon is a thought experiment created by the Scottish physicist James Clerk Maxwell to "show that the Second Law of Thermodynamics has only a statistical certainty. Since then the thought experiment was naturally analyzed close and their is no paradox. (A paradox is something that by definition contradicts itself like A= B, B= C, but C <> A, this can't be and so can't exist. So their is no paradox according to modern science. However, at the time it would have caused the 2nd Law to have a paradox, hence the ability, and so their for anything under a paradox ceases to exist, hence the ability. It is shown in the upgraded version of the Demon having 3/2, having the ability to destroy all other things with more hit points than life, so it assumes a rule was placed down with that demon, that it is the only creature with more hitpoints than life, and anything under it's gaze causes a paradox and hence can not exist. So in that stretch it works.
Mitosis: Mitosis is the process by which a eukaryotic cell separates the chromosomes in its cell nucleus into two identical sets, in two separate nuclei. It is generally followed immediately by cytokinesis, which divides the nuclei, cytoplasm, organelles and cell membrane into two cells containing roughly equal shares of these cellular components.
In otherwords, a cell splits itself into two based on it's DNA and continues to split everything else until you have two roughly the same cells. The card takes this to a macroscopic concept, which can be found in some plants as Asexual reproduction. So the game assume that all buffs and damage are ignored since the original DNA is the original card, unless the card was from a mutation, inwhich case the DNA might be damaged and subject to a higher rate of mutation and you get another card... so nothing to see here, move along.
Schrodinger's Cat: Schrödinger's cat is a thought experiment, usually described as a paradox, devised by Austrian physicist Erwin Schrödinger in 1935. It illustrates what he saw as the problem of the Copenhagen interpretation of quantum mechanics applied to everyday objects. The scenario presents a cat that might be alive or dead, depending on an earlier random event. But without interfering we don't know. The state of the cat being both alive and dead is considered entanglement. Entanglement has been proven, in as large of an object as two smallish diamonds. So the card triggering both a death event and still being alive is consistent, assuming the Cat is entangled some how. Although the ability should probably be passive, and as soon as the cat interacts with something, lets say attack or get's frozen the entanglement should break thus preventing the ability from continuing. Still, it's pretty close.
So their you have it, most of these are actually pretty close to science outside of Aether itself... happy now?