EldemadeDityjon
He/Him- 16,840
- 12,523
Rimuru literally has HGR because of a spell.There is a slight mechanical difference, where resurrection is activated (in this case, using Ingall), while regeneration is passive. So if you can do something to prevent someone from using magic, it'd effectively negate their ability to resurrect, while the same wouldn't be true if it were regen.
Taking Example from Regeneration page only.
Regeneration
Regeneration, often referred to as a healing factor, is the ability to passively heal oneself from wounds at an accelerated rate, with many characters proving capable of regenerating from wounds that would be lethal to normal humans. It has several different levels that range in potency from...
vsbattles.fandom.com