good news
clamhording is the following :
there is a artefact which is called clam of pearls . you get it with conjuration 2 .
you need water 2 to forge it . cost is 10 gems . it is a misc item .
it produces 1 astral pearl each turn .
i tried it now in my current single player game as atlantis . if you are left alone after 40-50 turns this is really devastating . i have now a bonus income of 120 astral pearls at turn 60 .
but only atlantis is really good at it ihmo .
they have 5 water pearls / turn from capitol site and water 3 national mages .
only other nation with water 2+ national mages which you don't get only via lucky random magic pick like ryleh is caelum . but they have only 2 water pearls / turn from their capitol site and are not quite unattackable in the beginning like atlantis .
so i would suggest building clams is allowed . only if someone really plays atlantis we should think about it . but for everybody else it will be like +10 astral pearls at turn 40 so that is not that bad
concerning the vq : i know that it was weakened in 2.12 : forbidden for ermor , cost increased from 110 to 150 and dominion decreased from 2 to 1 . so i would say if anybody wants to take a vq pretender he may
is ermor ae or sg allowed too ?
what do you mean with no castlers ? cause depending on which nation i play with some i choose the watchtower and when i chose the watchtower i try to build one in most of my provinces .
if i instead play a nation with good national troops i mostly choose the castle and so i build not many of them .
but if anyone chooses the watchtower why should he not be allowed to try to build one in every of his provinces ?