Here are the numbers of counters for Distillate of Immunization potions (disease cure) and Distillate of Antidote (poison cure). I couldn't find this info anywhere else so I tested some potions and made this chart. The formula for counters is (potion level + 1) times 4. The counters are split into 4 layers to give a potion the opportunity to cure multiple effects.
Mark of Death from Arch Magus Vangl is 14 disease counters, so III will cure it.
Code:
cost cure total I : 0.050 2 counters x4 = 8 II : 0.102 3 counters x4 = 12 III : 0.544 4 counters x4 = 16 IV : 1.832 5 counters x4 = 20 V : 3.669 6 counters x4 = 24 VI : 8.657 7 counters x4 = 28 VII : 8 counters x4 = 32 VIII: 9 counters x4 = 36 IX : 10 counters x4 = 40 X : 11 counters x4 = 44
