Rage Shield is Striker's main attack in Sonic boomhog: Extreme Formation, where it could block everything around himself. Will can also use this attack while in his Corrupted form, using it in Book Three.
There are three styles of the attack: a red full-body attack-shield like the one Striker gets in Extreme Formation, a small invisible field around the user which attacks are blocked by a red force field (which is used by Corrupted Will in Book Three, and occasionally by base-form Will) and a massive dome, which was used by Rageik to seal a handful of Celestial prisoners-of-war.
Add your own variants, if any exist.
Soul Shield: A very similar shield that is seen around Soul forms.
Add your characters to this list if they use Rage Shield