and no one realizes how easy Regen mobs are to kill :s
Regen is, arguably, the easiest InfernalMob type to kill. If you hit them for 10 hearts of damage, they lose 5 hearts off of their maximum HP, and rapidly regenerate to their new "Full" HP, which is less. It's like fighting any other mob, yeah, they stay at full health, but that "Full health" gets reduced to nothing very easily. It's just harder to see how many hits you have to go before you win.
Regen is, arguably, the easiest InfernalMob type to kill. If you hit them for 10 hearts of damage, they lose 5 hearts off of their maximum HP, and rapidly regenerate to their new "Full" HP, which is less. It's like fighting any other mob, yeah, they stay at full health, but that "Full health" gets reduced to nothing very easily. It's just harder to see how many hits you have to go before you win.