Talk:Abyssal Mask/@comment-15675781-20181019234258/@comment-4091261-20181206051016

This phenomenon is due to the rapidly increasing ease of dealing damage to the enemy upon decreasing their.

Thinking in terms of EHP, that raw damage is becoming a larger percentage of the enemy's HP as their resistance to that damage is decreasing.

to an enemy with and  means that it is dealing 25% of the enemy's EHP, which is 4000 EHP.

is contributing. Thus right now, it only looks like its dealing 3.75% of the enemy's HP. However, adding more magic penetration is lowering the enemy's EHP.

With 50 magic pen, the enemy feels like they have and thus the enemy only has 3000 EHP. Thus deals 5% of the enemy's HP. Though we don't need to even think of the enemy's, we just need to consider that their is cutting away a portion of  effectiveness.

at full effectiveness should be dealing 7.5% to the enemy's. Yet cuts it in half and  cuts it by a third. That aligns with the damage resistance caused by with the formula being /(100 + ).

I think the most important thing to look at to see how they both synergize is the damage that is dealt upon getting more magic penetration. It's clear that having more magic penetration increases the damage output of.

Though to put this in a more visceral way that people can actually see, just look at how much chunked by throwing  at their face. The more you chunk, the more useful something like is. That's because that magic damage amount you are chunking is what's being increased by 15%.

Unfortunately, it's not easy to give a similar explanation for magic penetration.