|Thanks to bfw182 for his awesome tips notes!|
Phantom Castle (PC) is playable during a certain period. By winning battles in PC, players can obtain rewards, such as item, gem, and characters.
How you position your units on PC is the most important part to winning it. You can have the best team and easily lose and also the opposite with having not a great team and beating superior ones.
It is very important not to group characters up together unless you are going for final blows and use type advantage carefully. In the ideal game you would like to try to get each of your units in a different corner of the map and each one having a type advantage over the opponent. This doesn't normally happen though because some units are netural/good against all other types and these units appear a lot on PC (Zabuza/Kakashi). Take on each enemy individually and do the best that you can with type advantage so that you can maximise the damage that you do whilst taken less then normal.
Once you done that above and you have lowered the opponents health down to a lowish point you can carefully then start to postion your characters to try and group your opponent up whilst trying not to group up your own too much. Once this is done use your AOE Ninjustu to deal damages like 4k - 8k to finish the game. Another somewhat obvious useful tip would be to carefully pick your opponent. You only get to see what one of there units is so pick someone that you know you have a type advantage over and remember that the better rank they are the more points you will earn.
Zabuza is currently one of the best in the game and should be on your PC team if you can get a copy of him. He has one of the highest attack stats and due to his type isn't bad against anyone.
Haku is another useful ★6 unit for PC. He has a very good health stat (his ATK stat is ok but compared to the other ★6 units is the weakest though) so can keep you in the battle for longer and a good ranged AOE Jutsu.
As with most most ★6 units Gaara is good for PC due to reasonable stats and with his high range he can easily attack two enemies whilst only getting by one of them.
Kakashi (Copier of 1k Techniques) is quite similar to Zabuza as he has both very good stats (more HP that Zabuza but lower ATK), and also has a typing that isn't bad against any enemy.
The newest Kakashi to join us in Naruto Blazing and one that I consider to be very good. He has very good stats and is realistically the only other choice of a Skill unit that you would want.
Healing is a very powerful ability in PC. Kabuto is the only viable option for it as otherwise your teams stats will be too low. He can heal nearly 2000 health in one go with his Jutsu and Field skill and considering that your overall health will be between 3k - 4k this is a huge help. If you are against Kabuto, the healing is much less impressive as 2k health out of 30k isn't in the same ratio. With him being a Wisdom unit as well he isn't bad against any other units.
Hinata has good all around stats for PC. Her Jutsu allows for her to tank hits which is very useful but at the cost of 6 Chakra does take a very long time to be able to use. Because of this other cards are preferred over her. With her being short range as well she will need to be used 1 on 1 with an enemy in the opposite corner of the map.
Sakon has a good damage output and has a Jutsu cost only 3 Chakra so can do some big damage quick, due to his short range you should try to have him take on a unit in one corner of the map away from the rest or he will be an easy target for multi hits and it will be hard for you to be able to hit more than 1 enemy with him.
Neji is a better Sakon in terms of stats as he has a higher damage output. His Jutsu does cost 5 Chakra however to use making him slower but his damage will be more. This comes down to preference mostly but I would choose Neji unless the rest of my team had high multiplier AOE Jutsus to charge my Chakra quicker and if that was the case Sakon could be more feasible.
Choji is a very very good unit for PC due to having very high health and quite decent damage as well as an AOE Jutsu. His Jutsu costs 4 Chakra so it can be used quite quickly but you need to be careful not to group Choji up due to his small range he would take unneeded hits and not be able to attack everyone back. His field skill of boosting attack can be useful when going for a final push but in theory wouldn't be used much as you want him away from your other units.