I tried that once on my sister's 2nd phone a long time ago. You can have dozens of uniques, can unlock all chest and upgrades that you can virtually make your character invincible in just hours of tinkering. 
 At first I enjoyed it because all I need is already there but the happiness has faded away so quickly. I abandoned it altogether because I feel no sense of achievement. 
 There was no challenge at all that it became SO MUCH BORING π. 
 I returned to my original account cause I cannot be happy by becoming a cheater. 
 Becoming strong is achievable without cheats like one of the top 10 in ranking in the arena.