The prayer pot in Monster Hunter Stories 2: Wings of Ruin is very useful because it will give you presents and enthusiasts for your party before you go exploring. You will find it right in the center of Mahana Village and when interacting with it, the Prayer Pot menu will appear.
You will have three different options, from Pray, to Offer Charm and finally Tsukino’s Lunar Luck.
Prayer allows you to say one prayer and evoke a blessing / buff at your party. You start by knowing only one prayer, a Training Prayer that will increase XP. You can learn more during the game.
Spells are items you will find in the world that can be offered in a prayer pot. Each spell will have some kind of effect indicated in the spell description. You will find spells while exploring the world, defeating monsters and opening the chest.
Tsukino’s Lunar Luck
You can ask Truskino to disclose your fortune once a day, which can result in either an item or a potential buff for your party.
Level up Prayer Pot
At the top left of the Prayer Kettle main menu, you’ll notice that it has a level. As you offer more spells, the level of the prayer pot will increase. The higher the level of your prayer vessel, the more effective your prayers and spells are, so it’s definitely worth it.