MArcomage

Production X/2? What does that supposed to mean?

Production/2
The normal Production/2

But how is resolved the conflict between the "durabilty" and the fact that the card can discards itself?

By dropping the keyword and giving it a 50% chance to draw itsself instead.
(Lizard men and it's nephew are quite sucky imo, if I compare the damageoutput per turn to a Troll. If that wasn't worse enough: They cost production...)

Formulation:
Next card will be Lizard Men or Lizard Warrior
Is more in line with existing formulations.