It passed: Great Halberd / +2 proficiency bonus / 1d12 damage / axe, polearm / reach, high crit/ 30 GP / 16 lbs.
Superior Weapon
Great Halberd
+2 proficiency bonus / 1d12 damage / axe, polearm / reach, high crit/
average crit 18.5, dpr 5.85
Greatspear (Great Halberd better)
+3 proficiency bonus / 1d10 damage / polearm / reach /
+1 to hit, -1 damage, no axe, no high crit, average crit 10, dpr 5.45
Zadatl (Great Halberd better)
+2 proficiency bonus / 1d8 damage / spear, polearm / reach, high crit/
-2 damage, spear instead of axe, average crit 12.5, dpr 4.65
Spiked Chain, (Great Halberd better)
+3 proficiency bonus / 2d4 damage / polearm / reach /
+1 to hit, -1.5 damage, no axe, no high crit, average crit 8, dpr 5.1
dpr is first level PC with 18 Str and 50% chance to hit with Great Halberd.
This passed? Wow. This thing blows the doors off the other reach weapons.
This weapon is almost as strong as the strongest weapon in the game, but it also has reach. Once the PC gets the crit range to 19, the Great Halberd even beats out King Mordenkrad for damage as well (6.95 dpr vs. 6.8 dpr).
Mordenkrad (Great Halberd better, reach is worth more than .25 damage or 1.5 damage per encounter)
+2 proficiency bonus / 2d6 damage / hammer / brutal 1 /
+1.5 damage, only one type, average crit 12, dpr 6.1
Yikes!