This tutorial will explain how you can get the Two Rounds and Three Rounds stones in Jeanne d’Arc. This ability will let your character attack up to three times per turn.
The best place to farm for Two Rounds is the final boss. To prepare, make sure you have nine party members who are at least level 60. Equip HP Plus and HP Recovery skills if you have any.
You should also make sure that you have Colet in your party with Skill Shakedowm. If you recruited Rose earlier, make sure to add her as well with the Skill Snatcher ability.
For the first two turns of the fight, you should directly attack the boss. Make sure that his HP does not fall below 1500. If it does, then the Shadowloom towers will end up healing him by 550 HP.
Starting on the third turn, Darkest Demons should appear. One of these should hold Two Rounds. You should then have Rose and Colet steal this skill stone.
The other party members should focus on healing and staying alive. You should avoid attacking any enemies when trying to farm Two Rounds.
I recommend that you get at least 10 for the post-game fights.
Once you have enough, avoid all the other targets and focus all your attacks on the final boss to defeat him quickly so that the Shadowloom towers won’t get a chance to heal him.
In order to get Three Rounds, you can simply combine the Two Rounds stones together by using skill binding.