I mean lets look at it this way, the Rinnengan evolved from the Sharingan is able to seal someone soul with little defense.
Sealing someone soul seems to be hard to even defend. Nagato uses this jutsu to get answers and then seal the opponent souls.
Obito was going to do it to Anko, meaning Madara Rinnengan grant this ability.
Then there Susano the ultimate defense and offense jutsu.
Lets not forget Preta Path to absorb chakra and jutsu.
Sealing someone soul seems to be hard to even defend. Nagato uses this jutsu to get answers and then seal the opponent souls.
Obito was going to do it to Anko, meaning Madara Rinnengan grant this ability.
Then there Susano the ultimate defense and offense jutsu.
Lets not forget Preta Path to absorb chakra and jutsu.