You cannot move to a kd using drakars unless it's 3 months old. We worked around that last year just preped lvl 5 jumpers as soon as 697 opened we moved there took control of the kd and established rules from start, got all leaders to one chat, shared information on game with all clans and brought our mains 3 months later. People were skeptical but they quickly realized we really meant no harm just strong kd for winning events, and we did, we were unbeaten for a very long time thing streak was 18 kvks until we finally lost one.
I don't think there is any other way to get a good kd going, we were very disappointed in our original kingdom for problems that were so far in couldn't be fixed. That's why we planed and based on that harsh experience made a new kd good for all. We don't let anyone move to our kd if we can help it ofc cos it's a gamble for it to be a well built person but a maniac or a very poorly built large account which is a normal person or a mix of that. You never know so best not take anyone outside kd just to be safe. But there will be ppl who can just jump unannounced like that one guy did but we dealt with him alright he is gone.
If it's your first time playing a kd it's seldom a smooth experience just cos there are others who are doing it again and it's again a cointoss if they are jackasses or trully wanna help.