Estimated magnitude of effects. However these values would be decreased by the inability to rely on any of them. Also remember this would be in addition to the weapon only non targeting PC effect.
[2 Atk + Plague] = 6quanta effect
[3 Atk + Mass Web] = 4quanta effect
[3 Atk & Vampire] = 4-5quanta
[Venom & "Death effects do not trigger for 3 turns."] = 4-6quanta
[2 Atk + Earthquake/3] 3quanta
[2.5 Atk + Absorb
] 3-5quanta?
You do know Absorb implies it will be destroyed if they can't pay?
[
/5 Atk + Absorb
] too hard to estimate
[4 Atk + Teach Gravity Pull] 5quanta
[2 Atk + Halve healing] 4-5quanta?
[6 Atk + disable Biolum] 7-9quanta?
[4 Atk + disable Hasten] 4-6quanta
[3 Atk +May freeze an owners creature] 3-4quanta
+/-1 Atk -> +/- 1 quanta effect estimate.