its a very good game if your the type that loves to play idle games, and have a very good luck;))
Tip: do the basics at the very beginning such as gathering monsters,ask google on how/which to upgrade.
Tip 2: just chill at the beginning also i would recommend to pick 3 to upgrade (mighty, speedy,slime/mocha/stacky) so that you would have an easy time to earn money since the higher the lvl of a monster that you have the more money you would get by idling, and also if you got a legendary (kevin,king slime) focus on them or look into google
Tip 3: use freeze spell only when strong enemies are breaching your defense, watching ads is worth it since they only consist of 15-30 seconds, if you can't beat a certain level just retry or don't play for 15 hours so that you would get lots of money for upgrading, also always use X2 money when claiming idle coins...
That's all what you'll need to know summoner;)
(Claim on mails that free 30 draws)