Clarification on relics, invasions and such

[bois]

Hi,

I am just asking a few questions which I hope could provide useful info for me. I have not played that much recently nor scoured the forums in any deep way in recent times either. So, I am a bit behind in terms of the current way of things.

I saw a closed thread regarding the relic on horse and realised that I actually have no clue about it. Frosk closed it and to be honest, wrote a lot there that was totally useless to me from an information point of view. Maybe he wrote about it elsewhere as to what was the official mechanism.

My questions are :
Is there a thread where there is an official statement on whether horsing with relic is good or not?
Also, are there threads with any official notes on invasions and the rules ,mechanics and so on?
Do instances work ?

I looked around and there seem to be dribbles and drips in various places but still nothing concrete in terms of overview. If there were official statements I am yet to find any with much substance. I found nothing pinned . Yes, I looked at the change-logs. It was somewhat useful.

Links would be helpful if anybody has any.

Thank you.