I was playing it today, finally leveled up a bit. However, I was checking this guide (since the game keeps changing while I'm away and I can't be bothered to ask people how I'm supposed to level up skills and such) and found this:
http://global.hidden-street.net/character/skill/endure-0I forgot about that. When they removed Endure, I was PISSED. That was so damn useful. I'd run away to a rope and recover quickly. Furthermore, this isn't as useful at higher levels, so why remove it? I guess it could be a bit unbalanced...
Edit: Was just checking MapleStory's news, noticed the entry on Potion Pot. I thought it was some weird thing for mixing potions into combined versions, but it's actually a lot smarter than that. You put different items that recover HP and MP into it, and it will use them all. This instead of binding a specific item to a slot, and then it turn out. It will use any item with a single button. Just enough thing which you probably shouldn't have to pay for, but maybe if they release a perm one it'd be worth the cost.
Edit2: http://maplestory.nexon.net/shop/cash-shop-guide/library/00Fiq/potion-pot Potion Pots essentially act as a much more efficient potion distribution system, and a bucket for all the HP/MP. It has a max capacity of one million HP and MP each, and can be upgraded up to nine million with tickets. When used, it will use exactly as much HP/MP as you need. I like that efficiency, but there is some confusing parts. It has an Elixir Mode whereas it can also take % HP/MP items, but that functionality is obviously weird considering how Potion Pots work. With Elixir Mode, it will accept the % potions, but will do so by calculating how much HP/MP it could be worth at the time of putting it in and puts in that much. Luckily this is toggle-able. It has a feature to take compatible items directly into it from off the ground. The pot stays indefinitely, but every 30 days it needs a Rust Remover to work again.
My Conclusion: If they release a perm version (that never rusts), you better get it. Otherwise, leave it be.