Ignatius is a Magic affinity legendary from the Ogryn Tribes faction. Ignatius is known for his AOE [HP burn] which requires zero accuracy to land!
Ignatius was one of the first champions in Raid Shadow Legends to give people a comfortable way to beat Spider! Since then more AOE HP burn champions have come into Raid however Ignatius remains one of the best when it comes to consistency.
His build for Spider is very different from other areas of the game, as you do not want him to be contributing any damage outside of his [HP burn] debuffs, which is naturally quite hard to do as Ignatius can hit incredibly hard, to achieve this you want to avoid any Critical Rate and/or Critical Damage in his build, focusing solely on Speed and Accuracy.
If you are building Ignatius as an Arena nuker, you will need 100% Critical Rate, Critical Damage and high defence.
You can also run him as a solo farmer in Nightmare Campaign 12-6 if in high crit, crit damage defence, over 200 speed and in lifesteal gear. He is one of the few that can farm Nightmare Campaign in under a minute solo.
Ignatius also has a kit that lends itself to the Sorath fight in Doom Tower with AOE [HP burn].
Overall Ignatius is a great defensive champion who can hit really hard!