Introduction: I'm going to keep this short. Some sections are going to leave out the math for the time being. In short luck is another form of skill boost, but the amount you naturally gain is much less. Monsters and low rank adventures stop at 70 luck. SS adventurers stop at 80. All Z and ^ stop at 100. High luck allows you to farm new items, coins, and monsters faster. The critical point is reaching at least 80 average luck on the team. The average team can be any size, so a team of two units with 100 luck is still an average of 100. Farmable 100 Luck Units: Since the natural gains on luck are so small, we need to be a little creative in our ways to achieve 100 average luck. Pact of Fate or PoFuck for short: tl;dr: You can obtain Jaguna^, Seiryu, Suoh^, Camellia^, Marlilth^, and Lich^ at 100 luck, Suoh, Camellia, and Sheena at 80 luck, and Jaguna, Velraine, and Marmalme at 70 luck for 5m coins and about 6000 additional stamina. The newest pool introduced into the game allows you to spend coins or energy to obtain units, but instead of gaining skill boost, these units will gain luck. There are two halves to the PoFuck. The first is pulling with energy. For now until the mechanics are better understood, don't touch this with energy! It appears for the normal player not spending hundreds of dollars, this is a not worth it. That said, pulling with coins is great for almost everyone out there. So what makes pulling with coins such a great deal? The allows you to obtain 4 adventurers with 100 luck and an additional 2 more with 99 luck. Owning 2 adventurers with 100 luck allows you to greatly improve your ability to farm additional coins via 5-8. If you have no reached chapter 30 to unlock recoding yet, you will be limited to one 100 luck and three at 80 and three at 70. PoFuck Cost: To obtain all of the units available from the PoFuck will cost you 4,026,000 coins not including job cost, which totals to 297,000. An addition 140,000 is required to recode and 600,000 coins to repull those lost. Lets assume helices are "free" stamina at this point since 34-10 is a great way to obtain xp. Stamina cost things other than coins includes pig snouts at 5200 on double drop day, Black hole for 200, and White Hole for 200 more. Overall you're looking at 5,000,000 coins and 5600 additional stamina to complete the PoFuck cast. That's about 830,000 coins and 925 additional stamina each. Currently this is the best deal always available. PoFuck Downside: There are case situations where you might not be inclined to work on the PoFuck first. The first situation is a player who is nearing the end of completing the PoF. For a new player, completely the PoF means that Jaguna, Velraine, Marmalme, Sheena, Suoh, Camellia, and Seiryu do not appear on the PoT. Completing the PoFuck removes these characters only from the PoFuck energy. Since the PoF cost about 1,200,000 more coins to complete, those within 1,500,000 of completing the PoF should continue to do so if they wish to pull from the PoT without risk. Some may disagree here, but that's an opinion talk. I feel if you are that close to completing the PoT, you want to get it over with, not delay it for another 5,500,000 coins. The second situation is a player who is playing casually. This means they would want to pull from the PoT rain or shine and don't want to farm coins for hours and hours. Shin'en: For those who own Mizell and Mizell O, Shinen is much easier to farm now. To reach 100 luck, it will cost between 2500 and 5000 stamina depending if you can bring a neg pro effect. The stage offers an insane amount of coins via selling buddies and luck chest. The Descends: tl:dr Each descend reaching 95 luck cost 300,000 coins and 4000 stamina on average. Stamina can be reduced by half with treasure hunt, neg pro, and PDK xp buddy. Preword: It seems in the time I was writing this post I had forgotten my personal position in the game. It has been pointed out the the descends are best to farm after completing the PoFuck due to the need of obtaining the material monster with max luck. Bahamut, Levi, and Odin are some of the strongest farmables in the game. The same whole true for luck, but the path is a little longer compared to just obtaining them. For this section, we're going to go the cost of recoding 5 times to obtain 95 luck ^ units. The values hold true across all three descends since they all have nearly the same rates. So lets look at Bahamut because he was there first. Obtain Bahamut job 3 without farming multipliers: Capturing Bahamut is 100% on ultra. The job 2 drop is 100% on ultra after his capture. The job 3 drop is 50% on ultra after the job 2 drop has been obtained. This totals to 160 stamina on average. It cost 30,000 coins to add the jobs and 30,000 for the recode. 5 ether on double drop day cost 365 stamina on average. For Bahamut to reach level 80 without a metal zone event in all three jobs, we're looking at ~20 metal tickets and 6 runs of metal zone 7. I'll put a stamina tag of 300 stamina on that. Remember no multpliers here, so I'm not including the PDK buddy to double xp gains. The grand total is 300,000 coins and 4,125 stamina on average to obtain a 95 luck descend. I would say that the descends are almost worth refilling stamina via energy to farm. They are around for only a limited amount of time and can open the door to 100 luck end game content teams (Dragon Kings, Descends, etc.). There is some work to finish reaching 100 luck. It may be worth the trouble to recode them a 6th time instead of farming the last 5 luck. I would rate this over PoFuck if you have completed PoF but have no coins. There is also the slow farming method where you recode twice each time the event is around. The first recode done before the event and the second during the event. You reobtain all of the materials and wait for metal zone 7 to appear in the arena. This could take up to 6 months to slow farm though if the descends do not become a biweekly rotation. Mutoh: When we obtain a twister seal buddy Mutoh will become as easy to farm as Shin'en. Be on the look out. Lucia: Predictions on this part using only information currently known. By recoding her 20 times, she would reach 100 luck. Right now magic units with 100 luck are far more rare than physical. That puts a little value into getting her. Each recode cost 30k, so 600k coins in total. No previous requirements. The cycle without knowing Lucia 4 stage would be run Lucia 1-3 once to obtain the drops. Level the units to 80/50/50. Recode. At some point you may need to run extra stages to gather more materials. There may be team wide luck gains during the dungeon. Since Lucia needs to be on the team, this could reduce the number of runs a little or a lot. Dragon Kings 100 luck farm: This is just theory talk. Lets brainstorm together. PDK: Can be cheesed with Tonberry. The troublesome mechanic is a kinetic trap. None of the farmable 100 luck units carry a control time besides lich^. There is also no healing on the team outside of Jaguna's area 2 heal. This could make things extremely difficult and take a long time. One solution could be recoding Palpa 53 times similar to the descends. This gives the team a method to gain CT, tap buffs, and regen. This would cost 2515 energy and having Palpa reach 100% SB again. Yes I know this is very painful on paper, but brainstorm. RDK: There is a Regencell kill method out there. We know that the Axion buddy is very helpful here. Baha^ and Levi^ give us 2 high magic attack units. Lich^ has decent magic attack and control time. Sadly the magic buffs are hidden behind this dungeon. That means no recoding Mizell to help us easy farm 100 luck drops. It could take months for Schweiz and Preyna to reach 100 luck. It pains me to say it, but Sh'berdan^ might actually be the solution here. Once again, he's hiding behind 2515 energy and recoding 53 times. It sounds even worse than Palpa. to be honest. He may not be a regencell replacement either. With the upcoming Snaip^, maybe there's some sort of team for Suoh^, Cammy^, Palpa^, and Snaip^ that can use taps. IDK: I honestly don't remember much of this fight myself even though I ran it so many times. Once again Schweiz and Peryna are flexing their muscles. The problem is they can't be recoded. None of the proton characters can be either.