Zenith Charm

The Zenith charm is the advanced version of the regualr charms known to the Monster hunter-verse. 
In order to obtain it the player is required to play through the main story (HIGH Rank) first.
Once unlocked the Hunter has to travel to his main village and speak to the elder. There he will be introduced to a new character the Wyverian Mythologic.
The Wyverian Mythologist introduces himself as "Yara" and shows the Player a pale gem he has been experimenting. Handing it to the hunter he explains following:
"This is the Zenith Charm, it is prove that you have come this far and mastered all kinds of troubles and dangers that came your way. It will serve as a sort of pass to many new places which were closed off to you before as also givin you permission to hunt various new monsters with the permission of the Guild. But that is not what is so special about the charm. This Charm here can Evolve. Yes, you heard right, it is able to grow with the strength of the holder of it. Meaning it can gain more and more new powers as you battle new and more dangerous monsters.
How does this work? Well due to some very advanced alchemy and some help of Elementalists who studied all the energy in the nature we came up with a device that should help hunters grow beyond their limits in order to defeat bigger and more viscious monsters to help the order and balance of the living eco system in various places. Every time you go out hunting new monsters the Zenith Charm will absorb so of the bio energy of that specific creature unlocking various skills that will benefit you. Hunting the same monster over and over again will help strengthen the effect of a skill and advance it to a certain point.
But be careful, everytime you faint in a mission the effects of the Zenith Charm will drastically drop. Also keep in mind you can only hold one Zenith Charm!
Now you might be wondering which skills does this mighty Charm have? Well it can hold the major 5 most usefull boosting abilities known to a hunter. The power to increase your strength, the power to increase your defense, the power of critical boosts, the power of sharpness and the power of gems. In order to unlock the power in the Zenith Charm you must hunt a specific Elder Dragon dedicated to the powers attribute.
Once you have done that it is time to go and start slaying. With time you'll get to raise the power of each power. Keep in mind the Zenith Charm has a limit to which it can grow the same goes for the Powers. So far we have noticed once it has reached it's peak it cannot grow beyond that point. Or at least for now, we are still trying to figure out how to master this new device and develope more and better efficient Charms that may one day even surpass the Zenith Charm, but as for now you'll have to accept that this Charm has its limit."
After the Wyverian Mythologist has finished talking a UI menu will show up and explain how the Charm works once again summarized.
Hunting an Elder Dragon that has its attribute dedicated to Power will unlock the ATK boost.
*Stage 1: +1 ATK (max +25 TRUE Damage)
**After Stage 1 the requirement to raise this boost is to hunt Brute (or Elder Dragons in G Rank).
Hunting an Elder Dragon that has its attribute dedicated to Defense will unlock the DEF boost.
*Stage 1: +1 DEF (max +50 DEF)
**After Stage 1 the requirement to raise this boost is to hunt Carapceaons (or Snake Wyverns in G Rank).
Hunting an Elder Dragon that has its attribute dedicated to Criticals will unlock the AFF boost.
*Stage 1: +1% AFF (Max +10% AFF)
**After Stage 1 the requirement to raise this boost is to hunt Flying Wyverns (or Temnocerons in G Rank).
Hunting an Elder Dragon that has its attribute dedicated to Sharpness will unlock the SHRP boost.
*Stage 1: +1 Sharpness Point (max +55 Sharpness points)
**After Stage 1 the requirement to raise this boost is to hunt Neopterons (or Piscine Wyverns in G Rank).
Hunting an Elder Dragon that has its attribute dedicated to gems will unlock the SLOT boost.
*Stage 1: +1 Small Slot (max +2 Large Slots)
**After Stage 1 the requirement to raise this boost is to hunt Fanged Wyverns (or Fanged Beasts in G Rank).
After completing a series of special Quest and finishing the G rank Story. The hunter has to go back to his village and talk to the Wyverian Mythologist again. You can see him and some other Hunters and reasearchers gathering around him. As the player slowly walks to the group you see a new Zenith Charm in the hands of the Guild Master. Everyone seems to be talking about the new Zenith Charm and glaring at it in awe. As you stand next to the Guild Master the Wyverian nods to you and the Guild Master hands you the new oddly shaped Zenith Charm.
"First of all, I have to congratulate you for your newest incredible task. Me and everyone else here in the village believed in you and knew you would pull through what others could have only dreamed of. From my bottom of my heart I want to thank you for saving us and the village and everyone else. And to show you my thanks I want to introduce you to my newest invention the Great Zenith Charm! Me and my fellow team of engineers and scientists have learned to process some of the materials we have obtained from you and created a new melding mechanic for a more sturdy and durable frame for the charm. With this it can now learn even more skills and raise its stats even more! With this the Great Zenith Charm can now learn skills that allow you to raise your elemental ressistance and your elemental damage! Also it will now have a new trait called the Apex Hunter Mode. Will activating thsi skill you can select a Species class and while on a mission during that period of time you are able to do increased damage to the monster or you can Select an Element and receive reduced damage from that element type! It is now a very handy tool to make hunts against even greater and more dangerous creatures, which you have unlocked now and will go see, easier. Sadly this is the most we can do with the technology at present and can not be advanced any further once it has reached its maximum limit. Perhaps in the distant future this decive will braod the way to even greater charms and help hunters fight creatures of which we have not even heard or imagined of. Maybe if could increase the input of the heat during...." 
The wyverian starts mumbling to himself and walks away after this and a new UI opens up explaining how to increase the stats of the Great Zenith Charm. it will also notify you that your current Zenith has been ugraded (No stat points are lost).
Similar to the first requirement to unlock the new skills on the charm, the player has to hunt specific elder Dragons or very unique monster dedicated to one of the elemental attributes. Meaning a Water Elder Dragon will for example unlock: Water Ress UP, Water ATK Up and the Apex Hunter Mode Skill: Water DMG Down. The same goes for every other element. Ailments are not included in this skill system.