To give some more substantial numbers on the difference between a full Spr- and a full Int necromancer build, I testet both again and took some screenshots. I farmed some Orange Grummer in Pystis Forest https://tos.neet.tv/npcs/58481
My Build:
https://tos.neet.tv/skill-planner#213444999.253545.152535.1f2f556575.11253f4161718a95a1b5
With full Int I had 98 Spr left from gear and 2854 magic attack that resulted in:
-damage per skeleton: 740-1200 = ~970
-damage per tick Psychic Pressure/Gravity Pole: ~3900
With full Spr I had 456 Spr and 1958 magic attack that resulted in:
-damage per skeleton: 1300-2200 = ~1750
-damage per tick Psychic Pressure/Gravity Pole: ~2300
To compare the total damage lets say we have a single Orange Grummer and 5 skeletons hit it while we channel Pole/Pressure. I think each skeleton hits once per second (correct me if I am wrong!), while Pole/Pressure ticks every 0.5 seconds.
Full Int dps: (970x5)+(3900x2)= 12650
Full Spr dps: (1750x5)+(2300x2)= 13350
The same example with 10 (Gravity Pole target limit at lv5) Orange Grummer. Here I count Shoggoth as two skeletons since he deals roughly double the damage from one (got lv10 Glackuman card), and just ignore that he has an aoe attack:
Full Int dps: (970x12)+(3900x20)=11640+78000= 89640
Full Spr dps: (1750x12)+(2300x20)=21000+46000= 67000
As you can see Int favors aoe damage since necromancer minions except Shoggoth only hit one target, while Spr shines most at 1-3 targets and is by no means as weak as many people think. Either way both paths are viable and have different advantages.
Int:
-Better aoe capabilities
-Somewhat easier to level and somewhat less depending on a strong weapon
-Better personal dps and with other non-minion classes
-Less reliant on minion damage (knockdown bosses are a bit less annoying)
Spr:
-Much more sp regen (at some point more than you actually need)
-Particulary strong against 1-3 targets
-Minions much harder to kill
-More survivability from Reflect Shield