These are the most common places for the following Dungeon Cards to drop.
If i left out some spots just say and i will correct it.
Map parts : Lake In Dusk lvl 65:
Fort Ruina : All the mobs of the land
Undead Ground : All the mobs of the land
Muster Card : Ruina Station lvl 75:
Fort Ruina : Mechazard, Auto Cannon-Ex, Excavator-alfa.
Undead Ground : All the mobs of the land
Epaullete of the Dead (B1F) lvl 85:
Undead Ground : All the mobs of the land
Epaulette of Dead (B2F) lvl 95:
Undead Ground : Vampire Servant +, Spector, Wraith
B1F : All the mobs of the dungeon drop B2F EoD’s
Seal Of Darkness lvl 95:
Fort Ruina : Hounds-S01
Lakeside : Bloody Orc, Dark Gnoll
Forgotten Ruin : All the mobs of the land
Mutant Forest : Any mob in Mutant Forest
Muster Card : Forgotten Temple B1F lvl 115:
Lakeside : Any mob in Lakeside
Forgotten Ruin : Fire Beetle, Cockatrice, Hexacyther, Blade Peryton
Mutant Forest : Any mob in Mutant Forest
Pontus Ferrum : Any mob in Pontus Ferum
Muster Card : Forgotten Temple B2F lvl 125:
Mutant Forest : Any mob in Mutant Forest
Pontus Ferrum : Any mob in Pontus Ferrum
Forbidden Island lvl 125 :
Mutant Forest : Any mob in Mutant Forest
Pontus Ferrum : Any mob in Pontus Ferrum
Altar of Siena B1F lvl 135:
Mutant Forest : Any mob in Mutant Forest
Pontus Ferrum : Any mob in Pontus Ferrum
Altar of Siena B2F lvl 135:
Mutant Forest : Any mob in Mutant Forest
Pontus Ferrum : Any mob in Pontus Ferrum