no MC CT can alter HR but even just slight change MC still need to bear the price and MC can't complettly offset HR price.

don't worry you're right he can change his nen property but he still he recharge it. killua can't change his nen property like other transmuter bcs he still young and lack experience so to change his nen property he need to struck by electricity (his amount he can change his nen depending based how much electricity he absorb)

idle transformasion with that CT i Will put an end for Korea plastic surgery supremancy.

Blood Origin false immortality : you can heal and regenerate your body parts using your blood as the source it Will be faster on healing compared to other and can be used on other too (the reason is bcs you using your own blood as price to heal)also MC can use blood in Domain expansion when the MC stronger and after dable in domain expansion. (instead like sukuna able to not using barrier why not Made MC have special blood that used as barrier where he can extract blood in his domain to use without using domain)

and how about MC CT can redirect heavenly restriction like how Mai and maki heavenly restriction but better by using someone else to bear the pay of heavenly restriction without reducing the gain.

there is chapter that say the body had limited amount cursed technique they can store in their body like yuta need Rika to increase the amount cursed technique he can store. and pretty sure kenjaku and sukuna also have limit even though they cursed spirit. i hope MC not break this limitation by having too much CT.

his line of sight is understand what thing he want to erase. so his weakness is to attack him with something that non-fiction user not understand so that the non-fiction user can't erase it.then what about him healing himself ? his non-fiction have 1 minor drawback that is it effect everyone even enemy so non-fiction healing is always spesific depending on what cause harm to self example if he wounded by a knife then he must erase concept wound inflicted by knife (if he erase concept wound then he and all people basically can't be wounded just bcs there is no concept wound)

yep to use ITS full potential only zelrech can do it. Rin could use Jewel sword but she has to bear the burden of torrent magic energy every swing.my my theory second magic is basically all version of you in parrarel world became 1 entity that can travel to any parrarel world as you're a master key that can unlock all door in that facility(earth) the downside is bcs all of version of you became 1 entity you can only do limited thing to change the future as parrarel world is almost limitless and ITS fate verse where only 1 correct answer in unlimited parrarel world.

massive ty bro. and i think this CR Will have stronger effect the stronger the user is like after hit jackpot you will have unlimited energy body that always at the top shape

can i request Kinji Hikari from jjk ?he has interesting ability but It's hard to explain it if you want make it in novel.

you can spice it up with raikou bcs raikou father is Indra so you can use her as substitute of Arjuna for karna wish to fight Arjuna again.

ITS not Merlin it was scathach that teach Aston when he was banished by Merlin.

here an idea when he learn RC technique he can transplant his organ that produce blood and tranplant it to other and make their blood same as his thus he Will be able to get living blood bag.

Duty knight of the king (B+) : increase parameter except magic power and luck after receive a command of someone user acknowledge as master increase "+" in parameter if the master use spell command. (this skill is tricky bcs the condition that most likely only artoria that most likely able to became his master)

ah yeah in fate good people Will suffer but the one who survive most likely is good people bcs the insane one is don't care too much about their live.

and also MC is to nice in his image control most likely he Will be strong but passive after he was summoned and most likely he is someone who see thing then decide end it after the final boss decide to show up.

Will MC became Chu ? the one who create singularity or even better MC create lostbelt. think about Ristuka came to lost belt where the world is prosperous and if Ristuka want to end the lostbelt it mean he must became the villain where he destroy other happiness for his own sake.

middle age with monster and war in sight everyday is something that modern human could understand. and for MC still able maintain his rationality is a great feat itself.

he can be lancer like cu who his magic is better than his spearmanship, support/production type caster but lack range output instead strong melee combat, and maybe berserker but with low berserk ability. basically our MC can be gag chara just based how much his past and achievment.

will bit became mihawk father ? or mihawk teacher ?