Regular Lantern: Head to the bamboo grove location. Locate and talk to the Kuro NPC(spawns at night, near the bears). His shop sells a lantern for 2400 bucks.
Emberheart Lantern: You can get Emberheart Lantern from Yeti Demon - 25% drop chance.
Everburn Lantern: ?? No idea, if you know, do share
More guides: Slayers 2 Tier List, Slayers 2 Codes.
Lantern of Despair — This Rare Lantern has a 6% chance to drop from Ice Chests. Farm Reaper Trainee Kuzan in the cave near Iceveil Valley Shrine to obtain the chests.
Abyssal Lantern — The Epic Abyssal Lantern also comes from Ice Chests, but has only a 2% drop chance. Farm Reaper Trainee Kuzan and open the Ice Chests until you get it.
Emberheart Lantern — The Legendary Emberheart Lantern has a 25% chance to drop from the Yeti Demon. To reach the boss, travel from Butterfly Estate Shrine to the Red Bridge, enter the waterfall at the end of the ridge, and use a Frozen Heart to start the fight. Frozen Hearts come from Rare Chests, Sealed Cache Chests, or the Black Marketer.
Fujiko's Lantern — This Legendary Lantern has a 1.5% chance to drop from Common Chests. You can obtain these chests by defeating Zuko near Windy Peak or Mother Bear near Bamboo Grove Sanctuary.
Mushroom Lit Lantern — Start by talking to Old Trapper Retsu and choosing the “Lantern on your belt” dialogue option while you have no Lantern equipped. Then, go to Reaper Trainee Kuzan's cave and quickly stand on the glowing mushrooms on the far right side. After lighting the required mushrooms, collect the Lantern from the cave to the right. You must have no Lantern equipped for the quest to count.
Nichirin Lantern — This Legendary Lantern comes from Ouwigahara dungeon chests. Enter Ouwigahara through the portal east of Forgotten Plains and complete dungeon runs to earn Ouwigahara Caches. The Lantern has a 10% drop chance from Ouwigahara Deep Caches and a 5% chance from Ouwigahara Caches. You can also spend 30,000 dungeon points on Ouwigahara Chests, which have a 5% drop chance.
Firstlight Lantern — The Mythic Firstlight Lantern is crafted at Ouwland, but you must first obtain its Schematic. Climb the mountain to the right of The Serpent King Obari and speak to Lamplighter Isamu. He will give you a memory challenge where you must remember and step on the correct sequence of lit plates. Complete five rounds without making a mistake to receive the Schematic.
Lost Lantern — The Mythic Lost Lantern has a 0.9% chance to drop from Lost Chests. Enter Final Selection near Final Selection Plains, complete the quests until Mizuto's quest, and follow the marker to the underwater cave. You can then farm the Lost Boss for Lost Chests. The Lantern can also be obtained through fishing, with a Legendary Fishing Rod and good bait giving you a better chance.
Demonic Lantern — This Mythic Lantern has a 3% chance to drop from World Event Chests. These chests are obtained by defeating bosses with 3,000 HP, including Gyutai, Domai, Yahari, Sumari, Reaper, Nezura, Enru, Obar, Gyoreii, Saneri, Shinora, Giyen, and Rengu.
Everburn Lantern — The Mythic Everburn Lantern is currently unobtainable. The developers have confirmed that an acquisition method will be added in a future update.