posted on May, 18 2014 @ 10:49 PM
Power rings as used by various wielders have exhibited (but are not limited to) the following effects:
Constructs of green 'solid-energy,' which can vary from microscopic to tremendous in size and/or complexity and are limited by the imagination of
the ring's wielder. This can be used to attack, defend, or to grab targets (Pre-Crisis, the rings generated telekinetic skills without constructs, if
Force field generation, a somewhat protective aura (limited by user's willpower) used to shield the wearer from the rigors of the vacuum of space.
This provides a breathable atmosphere for the user as well. Contrary to older canon, a Green Lantern ring currently does not automatically protect its
wearer from harm but must be willed to do so (previously, an unconscious wielder generated a protective force field automatically).
Generation of mental "earplugs" to block out telepathic communication and manipulation.
Rendering targets invisible.
Lights and beams of various intensity and colors, such as destructive plasma and harmless multicolored lights.
Flight, including flight at speeds beyond that of light, although this requires an enormous expenditure of energy.
Relatively instantaneous transport across the galaxy and other distances through generated wormholes
Teleportation (an ability that has not been used in quite some time and is outside the ability of modern Green Lanterns. In modern stories, only the
Indigo Rings allow instantaneous teleportation)
Pre-Crisis, the rings allowed for travel faster than the speed of light.
Time travel, though several power rings are needed to complete this.
The rings can act as semi-sentient computers and access information through their connection with the Book of Oa; the rings have problem-solving
skills but they cannot make decisions or take actions on their own, and must be given directives by the wearer:
Translation of nearly all languages (originally, this was accomplished by using willpower, but this has changed in the modern era to be a function of
the rings themselves).
Communication between ringwielders, regardless of distance apart
Diagnostic capabilities, allowing the user to see in X-Ray, diagnose illnesses, and identify materials.
Mental powers of various stages:
Hypnosis, including projecting the target's thoughts onto constructed maps
Creation and emission of certain types of radiation, including simulated wavelengths, such as Kryptonite
Placing humans into a state of suspended animation  and pulling them out of it
Changing the state of targeted matter and the wearer:
Allowing targets and the wearer to phase through solid objects
Rendering the wearer and targets invisible
Accelerated healing of wounds, protection and treatment from viruses and biological attacks and certain surgical procedures including reattachment of
severed limbs and digits. More advanced medical procedures may be performed manually and are limited by the wearer's knowledge of medicine. Lanterns
can still do this via constructs of objects with that capability, although Pre-Crisis, a wearer could instantaneously reinvigorate limbs that had not
been used in years, so someone bedridden for years could walk as though their muscles had not atrophied.
Virtual shape-shifting by generating a hard-light holographic disguise around the ring bearer.
"Digitizing" the wearer to absorb them into the ring where they can live in a wearer-generated "world" of their own nearly indefinitely.
Pre-Crisis, a ring could alter a target or wearer's molecular size (including shrinking to an atomic level or growing to galactic sizes),
evolutionary stage (such as turning a target human into an ape), or distort specific areas or the entirety of the body (such as slowing the Flash down
by making his upper torso too large for him to run, or causing Arisia to age when she wanted to be older subconsciously).
Pre-Crisis, a wearer could animate non-living matter and make the target do whatever he willed.
Pre-Crisis, the rings could create a construct of a ring that a "non-Lantern" could use for 4 hours at a time (as opposed to 24) without a great
effort of will. In the modern era, Guardians can simply create duplicate rings at will.
Pre-Crisis, a ring could create multiple copies of its wearer if certain conditions were met; each copy had the capabilities of the original
Pre-Crisis, rings could extract information from corpses. An example of this is shown in the animated film Green Lantern: First Flight. Sinestro was
able to "reconnect synapses" in the brain of a dead criminal in order to extract information via a kind of guided discussion.
The Silver Surfer wields the Power Cosmic, granting him superhuman strength, endurance, and senses and the ability to absorb and manipulate the
universe's ambient energy. The Surfer can navigate through interstellar space and hyperspace, which he can enter after exceeding the speed of
light. He has proven capable of time travel on several occasions, even able to make others time-travel with him.
The Surfer sustains himself by converting matter into energy; does not require food, water, air, or sleep (although he occasionally enters a
sleep-like meditation in order to dream); and can survive within nearly any known natural environment, including deep space, hyperspace, and within
black holes and stars. The Surfer can project energy in various forms for offensive and defensive use, including bolts of cosmic force
powerful enough to destroy entire planets, and create black holes. He can utilize the Power Cosmic to augment his superhuman strength to
indeterminate levels. The Surfer can heal living organisms, though he cannot raise the dead, and he has proven capable of revitalizing and
evolving organic life on a planet-wide scale. He can cast illusions, create interdimensional portals to other locations including
microverses, phase through solid matter, and exercise some level of control over the Astral Plane.
His senses enable him to detect objects and concentrations of energy light years away and to perceive matter and energy in subatomic detail, including
life energies of living beings. The Surfer can even see through time, and with concentration he can achieve limited perception of past and future
events in his general vicinity. He has demonstrated telepathic ability, including mind-reading on occasion, and has proven to be able to
influence human emotion and sensation.
The Surfer's board is composed of a nearly impervious, cosmically powered silvery material that is similar to his own skin. The board is mentally
linked to the Surfer and moves in response to his mental commands even when he is not in physical contact with it. The board is nearly
indestructible, but on those rare occasions when it has been damaged or destroyed, the Surfer has proven able to repair it, or even recreate it, with
little effort. The Surfer can attack opponents remotely by directing the board against them, and the board is capable of absorbing and imprisoning
other beings, at least temporarily.