难20和普通流程相比，最大的难点在于起始0资源，怪物攻击和血量数值的全面加强，章节boss转阶段后每轮加攻，攻击BOSS后会遭受aoe反击，商店和重随费用增加，初始移动减少，BOSS战后回复减少。

起始0资源和费用增加意味着更难凑齐遗物和技能组成完整的build。怪物攻击，血量数值和数量的加强要求玩家拥有更高的伤害输出能力，尽量在1-2轮内清理掉杂鱼。回复和移动数值的减少意味着玩家必须在build中加入一定的回复能力和机动能力。最后，玩家需要在BD中加入伤害抗性应对终局BOSS的高额输出。

角色构筑需要考虑三个因素，续航，群伤，成长。续航帮助玩家提高通关率，流程中有很多无法躲避的伤害需要靠HP吸收，群伤解决高难度环境中的大量高攻小怪，成长给予玩家足够的数值面对终局阶段的战斗。

游戏的流程难度在第一章是最高的，玩家在这个阶段缺少足够强大的输出数值和套装组合，在BOSS战前需要非常谨慎的选择技能和遗物组合，灵活运用药水渡过难关。

直接伤害>各种持续伤害

流血/剧毒是这个版本最强的持续伤害组合，还能兼顾生存能力

这个版本减少了属性伤害的堆叠手段，直接伤害的收益明显比持续伤害更高，持续伤害现在的功能主要是破减伤盾或者提供30%的伤害加成效果。玩家只需要简单的计算每回合有多少能量，一点能量能换取多少直伤数值，将强化集中于转换效率最高的技能就能完成比较强力的构筑。

大部分职业的1点意志对应30-50点直接伤害，属性伤害的基础伤害数值是冰30点，毒5点，火10点。由于属性伤害的层数可以在回合结束后留存，在不考虑暴击加成的情况下，1点意志如果造成多于2层冰(30+30=60)，6层毒(30+15+7=52)，3层火(30+20+10=60)就可以超过直接伤害的收益。

属性伤害包括层数伤害和引爆伤害（需拿到对应晋升技能）。

层数伤害=基础属性伤害*堆叠层数*(1+物理强度Physics power/魔法强度加成Magic power+技能强度加成Ability power)，在回合开始时触发，一般无法吃到标记、破甲/魔咒加成(因为这些buff只持续一回合)

虽然持续伤害的理论输出数值更高，但是难20更像是一轮内清掉所有小怪或者扑街的游戏，持续伤害只是boss战的添头，通关的重点在于能否堆出足够高的直伤数值一下清掉小怪。

还有一些需要注意的事项
1. 火，毒和冰的引爆伤害由基础直伤和引爆伤害组成，因此想要双倍引爆伤害至少需要叠两层标记。
2. 火的技能强化，野火wildfire将燃烧传播给剩余敌人的效果只能在回合结束时触发，如果提前击杀敌人将不会传播燃烧层数。
3. 毒的猛毒传播效果会在击杀敌人时触发，提前击杀敌人清场可以叠出非常离谱的层数(这版本被砍了，现在只能传一半)。

墨灵的祝福
赌狗护符，提高遗物和技能重随的稀有度，出货就起飞。

除墨者的标记
对于缺少伤害的几个坐牢兄弟算刚需，单次使用技能可以换算为0.8点全能伤害收益，前期刷起来后面就随便乱杀了。

优先选择：花园边界(Garden's edge)，静谧道(Silent promenade)，最菜的俩兄弟，都是白给。

普通选择：复仇林(Vengewood)，遗弃星船(Derelict starship)

落命选择：实验场(Proving grounds)，光耀市场(Radiant market)，这俩都是小怪很难清的场地，第一章去碰很容易翻车。

优先选择：减少回复相关的(stinging wounds, draft drought)，商人减少金钱收益(tourist trap)，吃球扣血(overstimulated)，杀怪产生污染(gunkfiled，如果你有屎山护符，没有的话算普选)

普通选择：高重力(high gravity)

落命选择：敌人每轮加攻(final chapters)，吃球下轮减费(wit thief,如果你拿了种草技能，这个算普选), 敌人伤害抗性(ink shield)

T1级：握碑力士Obelisk(爆炸伤害爆炸AOE)，矿锤斗士Magma miner(爆炸伤害和最强机动，多个目标叠加多层热量)

T1.5级：守护神Godkeeper(爆炸伤害和机动，需要遗物或技能)，断链霸Chainbreaker(最强伤害和最强机动)，飞镖客Mosscloak(不错的伤害和机动)

T2级：纺织法师Weaver(前期缺少足够高的直伤数值，通关需要有除墨者护符或者强力套装，但是聚怪能力和自保能力优秀，可以配合爆发技能清场)

T3级：星际队长Star captain(前期缺少足够高的直伤数值，通关需要有除墨者护符或者强力套装)，千里风眼Clairvoyant(输出伤害需要的条件太多，这个赛季小怪全体增加HP后很难清场，只能靠墨灵的祝福赌出货通关)

T1：专家挥墨师, 活力者, 发明家(每轮免费电击，配合爆发技能清场), 精准, 古老智慧, , 毒血/剧毒(左脚踩右脚起飞的组合，还有回复能力), 暗影(高羁绊otk),

T1.5 ：堡垒, 幻术师, 星行者, 古玩, 熔岩, 看守者, 宝珠领主

T2： 炼金术士, 入魔, 前锋, 掠夺者, 预言, 意志收集者, 迅捷, K金囤积者, 宝藏猎人, 神话, 风暴王, 翠绿, 侩子手, 开膛手,赏金猎人

T3：伏击者(10件套凑出来难度太高了), 针垫, 永极冰霜, 闹鬼, 霜火

注意命运骰子这个遗物有必拿，这东西的加成无限叠加并且战后继承，拖几百个回合就成上古神器了。

难度：
玩家数1>2>3>4，怪物HP数值和人数正相关，但实际难度是人越多越简单。玩家越多成功构筑强力build的概率越高(遗物可以按住鼠标左键丢地上交易)

仇恨机制：
最后一个攻击怪物的角色会吸引仇恨，可以事先沟通谁来承伤。

团队角色：
除了单人部分的构筑内容，你还需要考虑团队角色定位。最简单的选择是一个辅助，剩下的全输出，两个同种类型的属性伤害build叠起来非常快。

辅助：作用是聚怪，续航，承伤，造球。

输出：参考单人构筑，可以全部拿输出技能，也可以带一个生存技能提高容错。

多人游戏尽量多沟通，最难的是第一章和第二章初期，后面build成型基本上就乱杀了。

1、不拿任何升级，不拿球，不花钱，不带任何遗物，找大佬带快速模式(quick dive)一次就能做完，单人是没法做的。
2、不回血，注意打破罐子和拿药水有几率回1血，路上的东西除了钓鱼一个都不能拿，建议trinket选资本家(emblem of enterprise)，资源多一点。
3、70%暴击率，同种鱼的加成不叠加，两种鱼一共可以给45%的爆率，剩下的25%得靠遗物和加点。提升暴击率的遗物大部分是蓝色，单个遗物最高爆率加成15%。因此需要2个以上的蓝色暴击遗物，护符选(blessing of kwills)，拿偷窃(pilfer)强化摸鱼摸遗物在第二章猛抽资源。第一章第一个技能奖励如果没拿到偷窃就重开。
4、拥有bead of ice和bead of fire通关，思路和上面类似，至少要在第一章抽到一个，然后在第二章打绿色遗物关卡补全。

Compared to the quick dive progression, the biggest challenge in rank 20 lies in starting with zero resources, comprehensive boosts to monster attacks and health values, After boss transitioning to the next phase, there's an increase in attack each round(50%cap), You will get counter aoe attack during boss fight. The shops have higher prices, and the cost of rerolling is more expensive.

Starting with zero resources implies that it's much harder to gather the vestiges and bindings needed to form a complete build. The enhancement of monster attacks, their numbers, and increased health values demand that players have a greater damage output capability. The goal is to clear out the weaker foes within 1-2 rounds. Movement reduction require player build mobility to escape huge damage aoes. You will also need damage resist stats for boss fights.

The difficulty of the game's progression is highest in the first chapter. Players lack sufficient damage output and set combinations at this stage. Before the boss battle, You need to be very cautious in selecting skill and vestiges combinations and use potions wisely to overcome the challenges.

Your character build needs to consider three factors: sustain, AOE, growth.
Sustain helps you increase your winning chance as there is a lot of unavoidable damage in the process that needs to be absorbed by HP. AOE deals with a large number of high-attack minions in high rank games, and growth provides you with enough stats to handle late-game bosses.

Direct damage>DoT.

Bleed/Poison is best DoT combo.

In this season, the ways of stacking dots have been reduced. The benefits of direct damage are significantly higher compared to sustained damage. Sustained damage now primarily serves to break through damage resist or provide a 30% damage boost. Players only need to calculate how much energy they have each turn and how much direct damage they can get for each point of energy. By concentrating enhancements on skills with the highest conversion efficiency, players can create powerful builds.

For most classes, 1 point of Willpower corresponds to 30-50 points of direct damage, and the base damage values for elemental damage are 30 for Frostbite, 5 for Poison, and 10 for Burn. Since the stacks of elemental damage can persist after the end of a turn, without considering critical damage bonuses, 1 point of Willpower can surpass the benefits of direct damage if it results in more than 2 stacks of Frostbite (30+30=60), 6 stacks of Poison (30+15+7=52), or 3 stacks of Burn (30+20+10=60).

The output value of elemental damage can be divided into two types: stack damage and detonation damage(require binding ascension).

Stack Damage = Base damage value* Number of stacks*(1+Magic/Physics Power modification+Ability Power modification). It triggers at the beginning of a turn and generally cannot benefit from marks, shatter/hex(because these buffs typically last only one turn).


There are some other things to keep in mind.
1. Burn detonation, frostbite detonation and poison detonation damage consist of direct damage and detonation damage. To achieve double detonation damage, you need to stack at least two marks on the target.
2. The "Wildfire spreads burning to remaining enemies" effect can only trigger at the end of the turn. If you defeat an enemy prematurely, the burn stacks will not spread.
3. The poison spreading effect from Toxic can trigger upon defeating an enemy, so early kills can lead to extremely rapid growth.

One last thing:
While theoretically the poison and burn output numbers are higher, R20 solo feels more like "nuke or die". Elemental damage is merely an extra bonus for boss battles, the key to completing the run lies in whether you can stack enough direct damage to clear the minions in one shot.

Blessing of Kwills.
a all round trinket for better MF

Marker of the Unbound
a must pick if you are star captain or weaver(both lack of dmg output in early stages)

Some choices are clearly unsuitable for rank 20, and I will explain this in detail below.

Good pick: Garden's edge - Nim, Promenade - Rhinferno

Normal pick: Derelict starship - Mimic(Bad to classes lacking aoe and sustain), , Vengewood - Lusk(Bad to classes lacking aoe and sustain)

Bad pick: Proving grounds - Janus(hard to clear creeps before second phase), Radiant market - Captor (hard to clear creeps before second phase)

Bad picks are harder to beat in book 1, just don't pick them.

Good pick: stinging wounds, tourist trap, overstimulated, gunkfiled(if you have marker of the unbound)

Normal pick: high gravity

Bad pick: final chapters, wit thief, ink shield

Tier 1: Obelisk(insane damage and insane aoe), Magma miner(insane damage and insane mobility, multi target stacking heats)

Tier 1.5: Godkeeper(insane aoe and good mobility, high stormking/crit/omni damage sets required), Chainbreaker(insane damage and insane mobility, high poison/bleed/ancient wisdom sets required), Mosscloak(insane damage and good mobility,high poison/bleed/omni damage sets required)

Tier 2: Weaver(lack of damage output, require vestige or sets-high frostfire/molten/expert binder/omni damage)

Tier 3: Star Captain(lack of damage output, require vestige or sets-high frostfire/molten/expert binder/omni damage), Clairvoyant(damage output require too many prerequisites, get blessing of kwills or die)

T1: Expert Binder, Vigorous, Inventor(must pick for nuke skills), Precision, Ancient Wisdom, Poisonblood/Venomous(insane dmg combo with strong sustain), Shadow(high shadow for otk build)

T1.5: , Bastion, Thaumaturge, Starwalker, Curios, ,Warden, Orb Lord, Molten

T2: Alchemist, Enchanted, Striker, Reaver, Fabled, Will Collector, Swift, Kwilling Hoarder, Treasure Hunter, Mythos, Stormking, Verdant, Executioner, Eviscerator, Bounty Hunter

T3: Ambusher(too hard to get 10sets), Pincushion, Everfrost, Haunted, Frostfire

Notable vestige: dice of fates, infinite stacking stats in entire game.

Difficulty:
1 > 2 > 3 > 4
Monster HP values are directly proportional to the number of players, but the actual difficulty becomes easier as more players join. The more players you have, the higher the probability of successfully building a powerful build (vestiges can be traded by holding the left mouse button and dropping them on the ground).

Aggro Mechanism:
The character who deals the last attack to a monster will draw aggro. It's advisable to communicate in advance to decide who will be responsible for tanking.

Team Roles:
In addition to solo run builds, you also need to consider the roles of your team members. The simplest choice is to have one player focus on pulling mobs while the others focus on damage output. Two players using the same type of elemental damage builds can stack damage rapidly.

Support Role:
In a support role, you can focus on crowd control, healing, tanking, and orb generation.

Damage Output Role:
Refer to the solo run build, and you can choose all damage-related skills.

Remember that teamwork and coordination are essential for success in multiplayer games. Communicate and strategize with your team to optimize your chances of victory.

1.Challenge: No Upgrades, No Orbs, No Spending, No Vestiges

Completing a season victory board challenge without acquiring any upgrades, orbs, spending currency, or equipping vestiges can be extremely challenging. This is typically more feasible in quick dive mode when playing with a skilled player, as it's impossible to accomplish in solo play.

2.Challenge: No Healing

Be cautious when breaking things or picking up health potions, as they may provide 1hp healing. It's advisable to avoid picking up things on your path except for fishing, and you might consider using the "Emblem of Enterprise" trinket for more resources.

3.Challenge: Achieving 70% Critical Hit Chance.

Achieving a 70% critical hit rate is crucial for this challenge. Keep in mind that the bonuses from eating the same type of fish do not stack, providing a maximum of 45% critical chance. The remaining 25% must be obtained through vestiges and attribute points. Look for blue vestiges that increase critical hit rate, as they are the most effective. Each blue vestige can provide a maximum of 15% critical hit rate. You'll need at least two or more blue critical hit vestiges. Choose the "Blessing of Kwills" trinket. The "Pilfer"binding is important for stealing fish and vestiges, especially in Chapter 2. Reset if you don't obtain "Pilfer" from the first skill reward in book 1.

4.Challenge: Possessing Bead of Ice and Bead of Fire

To complete this challenge, you'll need both the "Bead of Ice" and "Bead of Fire" vestiges. The strategy is similar to the one mentioned above. Ensure you obtain at least one of these beads in book 1 and complete the other in book 2 by completing the green vestige reward.