User blog comment:Crimson and Darkness/Volume 25 discussion blog/@comment-31.11.130.174-20180319145945/@comment-26926813-20180319150334

1. Thanatos is far stronger than Pluto, Ise stated that in begin of their fight and even Ddraig stated that Ise need at least partial Dragon Godification to fight him

2. Ise use Pseudo form

3. Grim Reapers are stronger than Devils, Angels and Fallen Angels. Low-class Grim Reaper is stronger than middle-class Devil. Pluto was able to fight on par with Azazel in Fafnir armor who should be in above Maou-class league