We had a whale spend 11k$ in just training troops, he still didn't get the skin. Now, because of this event, we have 3 100m+ power players all quitting the game because they are fed up with the stupid p2w events. They are tired over the massive gap between low spenders and high spenders as they feel like they are ruining them game for others just because they have disposable income. All these stupid spending events may give the Devs money short term, but long term they lose players. The game needs f2p 9layers to keep the spenders entertained. If they don't support the f2p players to balance things, then they will lose the p2w players.
No tips or tricks will help you win this event lol. The credit card is all you can bet on if you want a permenant new city skin. And for low spenders/f2plays, its not really even worth going for the extra 5 tokens if you don't have good stones, you might as well stop at 200k power.
I really think going for 1m Power is not the play for the low spender because we are all at a point in the season where we dont have the max runestones yet i think u lose far more of rss to push 1m than u gain with the 5 tokens