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I wanted to bump this thread because I love these ideas and I'm curious if you've given more thought to them and if we can expect to see anything like this in the future of Graal Classic. (Also, I never got to reply to this thread)
I love the Hera hearts idea (especially needing to collect more each time to get additional hearts). However, I think the extra hearts should branch out to at least a section of pvp. Towers and sparring would stick with the standard 3 heart system, but everywhere else, you get to utilize your extra hearts. And there would be specific areas dedicated to the "classic" 3 heart pvp (I'm thinking of places like the pk area in snowtown no one uses). If this is too much, we can flip it around. There can be specific pk areas for people who want to utilize all their hearts, and the outside pvp would keep the same "everyone's equal" mentality. I think the latter would work better, especially at first. That way players who want to make use of all the extra hearts they've collected (and increased attack ability that will no doubt go with it) in a pvp setting can do so. Perhaps there could be additional incentive to pk in these "anything goes" pk areas. Like specific leaderboards and "pk streaks". This way players who put in the time and effort can be rewarded for it.
I think another addition that would work well with the extra hearts would be some sort of "weapon upgrades" for your sword, bombs, and arrows. If players are able to obtain more hearts, naturally they'll need to be able to output more damage or it would take forever to kill eachother (this can work for non-pk elements as well). Maybe you'd have to have a certain number of PKs/baddy kills and/or a certain number of hearts. Then you'd have to get a certain amount of, let's say, steel (which could be obtained through questing or even as random drops from certain enemies) and bring it to the blacksmith in snowtown. You'd give him the steel and a (fairly large) amount of gralats to upgrade the damage done by your sword by a quarter heart (I think hearts should split into quarters). You could do this multiple times but each time would cost a lot more steel and gralats than the time before. Bows and bombs would have to scale in damage too, but I haven't really thought out any ideas for how that would work.
Those are just a few small ideas. The main point is that I would like these things to apply to pvp in some way as well. But I think adding these "heart heras" would be a great excuse to open more areas, add more quests, and actually increase the difficulty of baddies and traps to the point where you'd need said extra hearts to even get past them. This would allow for so much potential content. Hell, you could have a whole new landmass where you'd need at least 10 hearts just to survive (perhaps there'd be some really tough baddies guarding the entrance to this new land, and it would be instanced, so no one could kill them for you). Maybe this "landmass" I speak of could be Babard? And perhaps any and all pk zones in this new area could utilize the additional hearts, since people with only 3 hearts wouldn't be able to get to this area, anyway.
Don't get me wrong, I love the cosmetic stuff, but there's just something missing from Graal Classic that would bring it all together. And I think this is it.
Edit - I wanted to add something. I think it should be difficult to obtain these heart heras. It should take time and effort. I'm not thinking of someone being able to get 20 hearts in a week. I'm thinking this would be a very long term goal. Like, 3 months for even the most hardcore player who collects them as fast a rate as is possible. I'm thinking some would be obtained doing daily quests, and some would be obtained in secret chests, or even rare drops from certain baddies (or common drops in the case of rare spawns, which I would love to see more of).
I would also love to see new items (or even just more improved versions of current items) utilizing some sort of cooldown effect to maintain balance. I truly love all of it, and I really hope some of these things will be a reality one day.
(I know the post is long, but just read it. I always put thought into my ideas, and I appreciate any kind of feedback)