Thats not necessarily true. Against a god like FG or Ferox, who have the potential to spam many creatures, an aflatoxin can help even before your shield because it stops them from creating as many creatures.
^what he said
you've been giving a lot of pointers TheOwner, some of them really great but some of them is really ridiculous
aflatoxin IS a gamble. thats the way it is
if you play it safe i.e. if you wait for a shield to play aflatoxin, might as well dont even bother with it because theres no assurance that you can play it before the pressure (creatures on FG side) gets out of control
so then you might take out a single creature but wasted its potential to do the best thing it does, limiting the threats on FG side
sometimes the gamble backfired, sure, but giving +1, +2, +4 damage to the FG is better than letting them fill it with higher attack
and like i said, not getting permafrost is the real issue here so what difference does it make if i let them keep that pharaoh to spawn more scarabs or replace it with a cells that double itself each turn?