VENTOR'S GAMBLE

1. General Information
   Ventor's Gamble is presumably the most popular Magic Find item in Path of Exile. It truly fits the RNG theme it's designed for, with the ability to roll negative values on almost all of its' stats - allowing it to be either pure garbage or fit among the most expensive items in the game. It may even roll with 0 mods too... Not to mention, the Rarity of Items found is currently considered a busted stat, with insane potential gains for the players if used properly, and this Ring can roll up to 55% of it which can be further boosted by Vaaling it, or using the Ingenuity Belt
2. How to obtain Ventor's Gamble?
   Ventor's Gamble is a global drop, meaning it can drop anywhere in the game. It can be also Chanced - when attempted on a normal rarity Gold Ring
3. Ventor's Gamble current price
   Most of those are worth literally nothing, but good rolled ones can reach the prices of hundreds of Divine Orbs or possibly even go into the Mirror Tier.
4. Recommended builds with Ventor's Gamble
   Ventor's Gamble works great on pretty much any Magic Find build. Ranged ones', like Lightning Arrow Deadeye for example have always been a popular choice, as this archetype definitely can progress with limited defenses

DREAM FRAGMENTS

1. General Information
   This is one of the most expensive Rings in the game currently. Of course, Mana management is a completely different thing compared to Path of Exile 1, but what truly winds up this Ring's price is the popularity of the Archmage/Stormweaver archetype - with allegedly nearly 50% of highest-level softcore players using it - and the Ring is the complete BiS part of it.
2. How to obtain Dream Fragments?
   Dream Fragments is a global drop, meaning it can drop anywhere in the game. It can be also Chanced - when attempted on a normal rarity Sapphire Ring
3. Dream Fragments current price
   Even low-rolled ones' with bad corruption start at over 60 Divines on Trade currently - so finding this piece is basically an equivalent of 100 Divine Orbs
4. Recommended builds with Ventor's Gamble
   As mentioned earlier, given its price, it's currently only recommended for the Archmage builds. Anything else can get better equipment, possibly for all available slots, for the price of just this Ring.

ASTRAMENTIS

1. General Information
   Astramentis offers a massive amount of all Attributes. In Path of Exile 2 it's much harder to get all the necessary ones' for your Skills and equipment so it's particularly useful. But that's surely not what puts this Amulet on the list of the most expensive Items in the game... Right now, the Attribute Stacking is considered the most OP thing in the game. Surely, not everyone is lying on Currency, and can afford it, but with a proper budget, you will surely feel like playing a completely different game
2. How to obtain Astramentis?
   Astramentis is a global drop, meaning it can drop anywhere in the game. It can be also Chanced - when attempted on a normal rarity Stellar Amulet
3. Astramentis current price
   Not corrupted Astramentis's price starts at around 140 Divines right now, making it the most expensive Unique Amulet in the game
4. Recommended builds with Astramentis
   It's the BIS item for basically any Attribute stacking build currently. Most are oriented around Quarterstaves and Pillar of the Caged Gods naturally, and this makes Monks the most common class to have it equipped, but the list of potential setups is quite long

HAND OF WISDOM AND ACTION

1. General Information
   Hand of Wisdom and Action is a must-have for any Attribute Stacking build - usually Monks or other Quarterstaff wielding classes that boost the damage of Melee Attacks via various Attributes
2. How to obtain Hand of Wisdom and Action?
   This pair of Gloves can only drop from Xesht, We Who Are One - Breach Pinnace Boss, and cannot be Chanced
3. Hand of Wisdom and Action current price
   This is the cheapest item on the list, starting at several Divine Orbs currently
4. Recommended builds with Hand of Wisdom and Action
   Just like Astramentis, it's ideal for Attribute Stacking Monks that can use a wide variety of Attacks. Currently, the most popular one is the Falling Thunder or Flicker Strike

HEADHUNTER

1. General Information
   The Headhunter is one of the most iconic items in Path of Exile. For years, it has been the primary goal of the vast majority of Path of Exile 1 players in each League. However, its dominance was recently overshadowed by the Mageblood. It naturally returns in Path of Exile 2, but, at least for now, it’s no longer the powerhouse it once was. This is primarily due to the limited number of rare monsters encountered on regular maps. However, who knows what the future holds?
2. How to obtain Headhunter?
   Headhunter is a global drop, meaning it can drop anywhere in the game. It can be also Chanced - when attempted on a normal rarity Heavy Belt. Particularly popular choice to use your Orb of Chances on, since there is just one Unique Heavy Belt that can be acquired from it
3. Headhunter current price
   Headhunter prices start at around 12 Divine Orbs on trade 
4. Recommended builds with Headhunter
   Any build that is oriented on quickly clearing Maps will be like Headhunter. For example, Magnetic Salvo Deadeye or other similar Ranged builds with good mobility

INGENUITY

1. General Information
   Ingenuity is considered the #1 Belt in Path of Exile 2 - and the most expensive one at the same time. It will be the Best in the Slot item for basically any build where you invested a lot of money into your Rings.
2. How to obtain Ingenuity?
   Ingenuity can only drop from The King in the Mists - the final Boss of Ritual mechanic
3. Ingenuity current price
   This Belt's price starts at around 20 Divine Orbs but raises exponentially with a good roll on its' core modifier. Perfect ones' with Corruption to push it even further can reach the price of a Mirror or above
4. Recommended builds with Ingenuity
   This is the perfect Belt for basically any build that you invested Currency into your Rings. The only exceptions would be builds that require other Unique Belts that are build-defining for them

OLROTH'S RESOLVE

1. General Information
   Olroth's Resolve is the best and most expensive Flask in the game. It allows for overhealing from Life Flasks, which is added as Guard (a new defensive PoE2 mechanic). This significantly boosts your survivability, even if you are not oriented in any way on increasing the effectiveness of your Life Flasks and the amount of healing they provide
2. How to obtain Olroth's Resolve?
   Olroth's Resolve can drop only from Olroth, Origin of the Fall - the final Boss of the Expedition
3. Olroth's Resolve current price
   The lowest price for this Flask currently is approximately 40 Divine Orbs
4. Recommended builds with Olroth's Resolve
   This Flask will be perfect for basically everyone who has a spare 40 Divines

TEMPORALIS

1. General Information
   This Item, even being a guaranteed drop under certain conditions, is considered to be the hardest item in the PoE2 to obtain. Sadly, due to some alleged duping methods, there are many copies of this Item available on trade, and with limited usage its' price is dropping constantly 
2. How to obtain Temporalis?
   It is a guaranteed drop from Zarokh, the Eternal when completing a Level 80+ Trial of the Sekhemas run using The Last Flame Unique Relic
3. Temporalis current price
   This has been the most expensive Item for a while, but subject to some alleged duping bugs, it quickly reduced to approximately 25 Divine Orbs at the time of writing.
4. Recommended builds with Temporalis
   This Armour has very limited usage with not many builds relying currently on Cooldown recovery mechanics - and most Guides out there recommend it, might be doing so for the wrong or unfair reasons. 

MELTING MAELSTROM

1. General Information
   Surprisingly enough, we have another Flask on our list. This time it's the most expensive Mana Flask, but in this case, this will be useful only for a small fraction of builds that revolve around scaling your Maximum Mana and using Archmage Gem, for anyone else, a regular Mana Flaks will be simply better and more efficient
2. How to obtain Melting Maelstrom?
   This Flask has restrictions on where it can drop, which is the Simulacrum encounter
3. Melting Maelstrom's current price
   The price on trade starts at around 30 Divine Orbs currently
4. Recommended builds with Melting Maelstrom
   This Flask deals potentially very high amounts of damage based on Mana Spent in the last 3 seconds and can recover all your Mana instantly. Only a small fraction of builds can put this to good use, and this will be the Archmage builds we mentioned above already

MORIOR INVICTUS

1. General Information
   Morior Invictus always drops with 4 Rune Sockets, and the 5th can be obtained via Vaal Orb corruption. Each of those comes with two randomly selected modifiers that include bonuses like Rarity of Items Found, Maximum Life/Mana, Global Defences, Attributes, Resistances, and Spirit. All increased for each Socketed Rune or Soul Core
2. How to obtain Morior Invictus?
   This Armor drops from "Final" Boss of Path of Exile 2 - the Arbiter of Ash. 
3. Morior Invictus current price
   Armors with good rolls start at several Divine Orbs
4. Recommended builds with Morior Invictus
   Right now there aren't many confirmed good uses for this armor. It's been quite popular among Attribute-stackers if rolled with the corresponding mod and 5 Rune Sockets, but overall the utility is quite low on this piece