i think he mean that tattoowelcome to nb
because you dont need oro's cursed seal (not tattoo)
for summoning manda
*when no ones lookin* kuroi kage hebite no jutsu *black shadow snake ahd technique*
* a big hawk came and ate ur snake*ha ha!! it worked, YES!!!!!!!!!! IT FINALLY WORKED, i`ve been workin on that jutsu for ages and it finally works!
0_oJiraiya has a tattoo as well, but for summoning frogs.