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Background: Alendyias is a world that was formed inside the Fracture of Reality, one that is still forming as the Fracture in Reality grows and absorbs other worlds in its path. Absorbed worlds and all life in and on them are saturated with Chaos Energy, which in many cases turns ordinary creatures into monsters like trolls (formerly large apes) and goblins (monkeys).

Chaos energy and magic go hand in hand (are practically synonymous), so various creatures have turned the Chaos Energy infusing them into something we call Enchantments, a magical effect they hold during life and grant to whatever kills them upon death. (The link explains how this works for one specific monster, a slime-type creature called a Plop.) Enchantments are not just imposed by the Fracture, they are reflections of a creature's innate nature. If a creature evolves in such a way as to develop a new nature, it will develop a new Enchantment as well.

The trouble is, I need a creature with the Knockback enchantment, as this is a very useful Enchantment. Knockback is (sort of) simple; items and creatures with Knockback absorb kinetic force when struck and put it into their pushback. In clearer terms, due to Newton's Third Law, all matter pushes back with equal and opposite force when pushed upon. All Knockback does is redirect the force acting upon it into the force it is putting out, essentially doubling an item's kinetic output to push the offender away.

Enchantments are based upon a creature's nature and/or physiology, so a creature with Knockback would need:

  1. Elasticity-In order to absorb and redirect force for Knockback, the creature must have some inherent springiness. This could come from blubber, springy hide, or inherent rubberiness (like Plop).

  2. Nature-In order for a creature to have Knockback, it needs to use its inherent springiness to knock enemies around, tackling, shoving, and pushing things with its springy body. I'm thinking something like a headbutting beluga. This entails aggression, a certain vindictiveness; to push back when pushed, to strike back when struck.

Why am I asking this? Well, I could just handwave this thing's existence, but all of my other creatures have a logical basis, so this Knockback monster needs one as well. Thus, my question is How Can a Creature With Knockback Come To Exist?

Specifications:

  1. An answer must determine a creature that could evolve to meet the specifications above; ie. one that has the potential to either gain Knockback upon entering Alendyias or could evolve to have the Knockback enchantment.

  2. An answer must also determine how the said creature would need to evolve to gain the Knockback enchantment and what conditions are necessary for making it happen.

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  • $\begingroup$ One thing to consider : If the reaction force to the ground is magically redirected towards the ground, your creature won't be able to move. Even if you keep like 10% of the force, you would be like if you tried to move your legs around in the air. $\endgroup$
    – Tortliena
    Aug 31 at 19:59
  • $\begingroup$ @Tortliena: would it though? From what I understand, the creature would absorb the force of the ground and use it to push even harder off of it.... $\endgroup$
    – Alendyias
    Aug 31 at 20:34
  • $\begingroup$ All Knockback does is "redirect" the force acting upon it into the force it is putting out. Emphasis on "redirect". You're in a case of action/no reaction, where even friction would be removed :). You can always counter that by telling that the initial object still gets a good chunk of the force (knowing that they'll have an harder time moving if under 100%), or alternatively that only some parts of the body are enchanted (not the feet), or simply controlled at the user's will. $\endgroup$
    – Tortliena
    Aug 31 at 21:00
  • $\begingroup$ @Tortliena: ah, thanks for clearing that up! I believe I will restrict Knockback to certain parts of the body then, unless [Burn][1] is a good example of how to apply this and still move? [1]: rwby.fandom.com/wiki/Burn $\endgroup$
    – Alendyias
    Aug 31 at 21:03
  • $\begingroup$ In that case your power is more acting like a buffed-up spring. Just hope the guy has a good grip with the ground on receiving strong impacts. Or perhaps they become one of those magic-ball, if the whole body is acting like that? Anyhow, it's science ramblings, either Ruby or other animes take freedom with that reflecting principle. $\endgroup$
    – Tortliena
    Aug 31 at 21:17
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Going on a different tangent, how about something like a yak?

From a physical standpoint, horns to attack with coupled by a dense fur that normally keeps them warm could work as a base.

The lack of springiness inherent in the animal could be solved by the chaos energy making their fur elastic/springy enough to be capable of absorbing the kinetic impact of blows, thus fulfilling the qualification in a different way. The energy absorbed by this fur is then turned into a devastating counterattack from their horns. There is a balance to be struck between springy and insulating fur that might alter their habitat a bit.

As herd animals of the cattle variety they are not known to be aggressive in our world outside of mating season. That should be fine -- they don't use their Knockback enchantment for offensive purposes anyways. These animals can be aggressive if provoked, they are just difficult to provoke normally.

As a plausible reason to develop this skill, their range of territory is smaller in this world and has less places to run compared to the world they originated from. Alternatively, their predators on Alendyias are smarter and cut off main avenues of escape in an attempt to corner them -- possibly through their own abilities. Regardless, they have been pressured to develop a way to weather attacks from predators and discourage them from attacking. Knockback would work nicely for this -- the springy insulating fur absorbs the force of impact and prevents the predator from injuring the animal, and the additional force makes their counterattack that much more dangerous to the predator trying to eat them.

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  • $\begingroup$ This is great! I love how you took the setting and explained how yaks could fit the criteria, and how you even explained how they could develop that way! $\endgroup$
    – Alendyias
    Aug 31 at 20:33
  • $\begingroup$ mobile suit gundam:knockback yak's counterattack $\endgroup$ Sep 10 at 15:45
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Kangaroos:

No, it doesn't have to be a Kangaroo specifically, but kangaroos store and conserve large amounts of the energy they use while hopping and use it in their next jump. They certainly are known for kicking and using this energy to repel things trying to harm them. so if you want an animal that stores and redirects kinetic energy, that's a good one.

If something like that doesn't work for you, the jumping of frogs is based on storing and releasing elastic energy. Without storage, frogs would just be awkward walkers.

enter image description here

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  • $\begingroup$ Interesting, I didn't consider a jumping animal for Knockback! I'm not quite sure about kangaroos yet, but I do see how they fit the criteria, so I'll get back to you on that. $\endgroup$
    – Alendyias
    Aug 31 at 13:26
  • $\begingroup$ Storing and suddenly releasing energy: how about the Mantis Shrimp? $\endgroup$
    – JDługosz
    Aug 31 at 15:12
  • $\begingroup$ @JDługosz It's not quite how I envisioned knockback, but it's a good enough one you should enter it as an answer. youtube.com/watch?v=8enojiJCD00 $\endgroup$
    – DWKraus
    Aug 31 at 20:07
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Rhinos? Naturally aggressive to anything in their territory that is considered a threat. They've been known to attack vehicles driving on roads through their habitat. Their tough hide could be considered springy maybe?

Another option would be a Hippo. Same comments as the above, but you could add an additional enchantment property due to the reddish oily sweat that they excrete to keep their hide hydrated. Maybe the secretion could be changed through Chaos to provide the knockback effect.

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  • $\begingroup$ There's the start of a good answer here, but I can't see rhinos or hippos working for this. Rhinos don't have enough springiness, and a hippo's oily sweat would probably result in a Slickness Enchantment. Otherwise, thanks for your answer! Great so far! $\endgroup$
    – Alendyias
    Aug 31 at 13:09
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Bighorn sheeps/Big horned goats?

Not a super aggressive animal but them butting humans with their big horns can produce a decent amount of knockback and can be really dangerous

I'm not sure about their springiness and elasticity but i guess their bodies are also kind of springy as they can jump around and butt heads.

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  • $\begingroup$ Yes, I could see a ram developing Knockback, but they'd need some development to qualify...also, ram skin is elastic? Could you source that please? $\endgroup$
    – Alendyias
    Aug 31 at 14:49
  • $\begingroup$ Oops im so sorry my bad, i misread it, sheepskins leathers are the ones that are elastic. Not ram skins, i will remove the statement $\endgroup$ Aug 31 at 14:56
  • $\begingroup$ It's fine, we all make mistakes. $\endgroup$
    – Alendyias
    Aug 31 at 15:02
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How about something like a darumaka/punching bag. you knock it down, it knocks you down. In practice like reflection.

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  • $\begingroup$ This looks like the beginning of a great answer, but it needs more detail. What living creature could fulfill this role, or evolve to do so? $\endgroup$
    – Alendyias
    Sep 10 at 22:51

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