You have to at least have the quest loader to install and play this quest.
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Credits and distribution permission
Other user's assetsAll the assets in this file belong to the author, or are from free-to-use modder's resources
Upload permissionYou are not allowed to upload this file to other sites under any circumstances
Modification permissionYou must get permission from me before you are allowed to modify my files to improve it
Conversion permissionYou are not allowed to convert this file to work on other games under any circumstances
Asset use permissionYou must get permission from me before you are allowed to use any of the assets in this file
Asset use permission in mods/files that are being soldYou are not allowed to use assets from this file in any mods/files that are being sold, for money, on Steam Workshop or other platforms
Asset use permission in mods/files that earn donation pointsYou are not allowed to earn Donation Points for your mods if they use my assets
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File credits
Huge shoutout to Fexty, for creating the quest editor that allowed me to make this, and for making the quest loader that allows you to play it in game. None of the custom quests are possible without him!
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You need Fexty's Quest loader in order to run this mod.
Drop the .json file into X:\SteamLibrary\steamapps\common\MonsterHunterRise\reframework\quests.
The MR Apex Rathian follows the exact difference in scaling to MR Rathian as HR Apex Rathian did to HR Rathian. It's a ~43% increase in HP on MR Rathian, and is ~2.07x the HP of HR Apex Rathian. Provided you don't have any other modded quests with the same quest ID (315664 if you need to check), this quest should show up on the last page of 6 star MR quests.
I made this as a challenge for my good friend Brill Suo, who is WR holder for LS run on HR Apex Rathian, since he misses her so much in rise. Hence the Gajau that is shown.