Very confused with fork, returning proj., lightning arrow. What happens?

Setup: Lightning arrow. 3 projectiles. Fork. Returning projectiles.

Scenario 1: A single enemy is hit by the lighting arrow. The arrow forks and hits a wall. Two arrows return to me through the enemy from the fork and two from the initial shot. How many times is the enemy hit by my arrows?

Scenario 2: There are a 9 enemies. 3 get hit by 3 initial arrows, these fork to another 6 enemies, then return through the same initial 3 enemies to me. We have here a total of 3+6+6=15 hits, does my lightning arrow triggers its lighting 15 times?

I'm extremely confused as in when a projectile does damage and when not. In my tests the damage is sometimes nothing and other times it one-shots a whole screen.

Projectiles don't shotgun, AoEs can overlap (in LA case).

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Faic wrote:

Scenario 1: A single enemy is hit by the lighting arrow. The arrow forks and hits a wall. Two arrows return to me through the enemy from the fork and two from the initial shot. How many times is the enemy hit by my arrows?

Two, 1 on the way out and 1 on the way back.

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Faic wrote:

Scenario 2: There are a 9 enemies. 3 get hit by 3 initial arrows

3 projectile hits = 9 AoEs

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Faic wrote:

these fork to another 6 enemies

6 projectile hits = 18 AoEs

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Faic wrote:

then return through the same initial 3 enemies to me

3 projectile hits = 9 AoEs

It total the 3 front enemies each get 2 projectile hits, the 6 back enemies each get 1 projectile hit. How many AoE hits each enemy get is random (36/9 =4 on average).

Thank you so much. I think that explains what I saw in my tests. Single target was horrible but if there are enough enemies, then everything got deleted, no matter what.

The main idea was triple fork + return. With awakened fork and replica infractem. So it has around 3x2.7x2.7x2 = 100 hits (with maybe 200-300 lighting strikes) per shot in dense maps where it deletes everything on and off screen.