deadly pet brawler trading with new accounts

[hesitare]

hey guys

what do you think about my idea to buy battle chest accounts and try to trade the achievement with my main account? a battlechest costs 15 euro i guess, but im willing to spend it
achievement requires to win 1000 pet battles with a full grp of 25s

should i make a char on my mains server? or is it completly random which server or accounts can queue against each other.

if anyone experienced that, i would love to hear that

best regards,

hesitare