Amplification Summoning Technique

This is a summoning technique that in which the summoned creature is given a special condition and when that condition is met it gains a certain ability.

Pain applied this technique to his dog summon. Upon being struck by a direct attack, the canine could divide into another identical beast and increase its power. The beast can then recombine if needed, with one body carrying the heads of however many additional beasts were created.

Ao has applied this to his summon Souji in order to use the Fox Clone Technique. His variation of this jutsu is unique as Souji doesn't use it to merge only to multiply.