Summoning Ninja concept - Puppet controlling Ninja

Adding on to Chillees' idea of a summoning ninja.

I think the ninja should summon puppets which he controls with string. The control over the puppets can be broken by enemies by walking through the string and breaking it. This means that the Puppet controlling ninja must be able to skillfully manage his puppets to ensure they can deal damage, while keeping their strings protected.

This ninja can swap places with his puppets, which will make their strings disappear briefly. This can be used to surprise opponents or to keep control over your puppet.

This ninja has a variety of puppets which can be chosen like Twisted Fates ability which rolls through 3 options. The puppet ninja's ultimate will be able to do that, and choose between a nimble melee bruiser puppet, a low health mage puppet which can root enemies, and finally a slow tank puppet which disorients team formations with high health and a rush which knocks away enemies.

I want this ninja to be able to summon all three at one point, so for it not to overwhelmingly broken, each individual puppet should be weak however when skillfully controlled the 3 puppets can be a terror to battle. The puppets each have health, so breaking the string will not be the only way to destroy the puppets, and hard crowd control such as stuns, freeze and knock-ups will cause the puppets to stop all motion and attacks until the crowd control duration ends.

The passive of this ninja could be that he rigged his puppets bodies with bombs and an enemy walking over a puppet could trigger it.

The other ability slots could be allocated to movements of the puppets and movement speed buffs.

What other abilities should be added, what abilities should be removed? What are your thoughts?