I tried it awhile ago and as it was said it's a pay to win game very badly.
You can get cards you pay for that can can increase your resources over time by 10x normal, lets your troops move 6x time the normal speed over the map, lets you have almost half again as many troops to defend your base with and even cards that will spawn you troops so if you have enough money you can simply keep paying to get unlimited troops.
Not to mention if you have a "premium account" you can enable auto attacking and farming of npc storage areas without doing anything.
And they don't allow multiple accounts on the same ip to interact like other games do of this type and ban you unless again you have a premium account and then it's fine and they even say this in their official rules so they allow cheating as long as you pay for it.
Otherwise it simply reminds me of a better looking game like tribal wars but even more abuse if you pay to win in it.