I think you can get it from guild treasure box or old blue box
Crescent scythe: The scythe that baphamot use Dofus kamas, one swing can kill an enemy easily. It is also one of my favorite spears. Use it to kill lord of death because it does critical atk more easily and to break emporium because caracal damage ignore defense.
Brionac: A strong holy element spear that does 190 atk, you can get bonus skill when you use it. Where to get it I also don't know.
Hell fire: The strongest spear ever had, does 200 atk and it is fire element you can cast fire ball or some fire skills. Where to get it I also don't know but I think you can get it from guild treasure box or old blue box.
Equipments needed: Almost same as any other AGI characters, the equipments are almost the same.
Head (upper): +4 ghost bandana
Head (middle): Any headgear (recommend slotted sun glass with ether deviruchi or madrik card)
Head (lower): Any headgear
Amour: +4 Plate amours (1) with theif bug card
Robe: +4 Manteau (1) with whisper (nine tails with a +9 manteau or muffer)
Shoes: +4 boots (1) with thief bug male card
Accessory: Brooch (1) with kurle card X2
Weapons: Spear paladins have low STR so you will need a lot of weapons
General use: +5 trident (3) with injustice, slide wider and golem or +5 halberd (2) with injustice and slide wider