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This trick is quite simple, but it is considered Advanced because, to reach it, you need progress in the game and some experience in war.
Many people don't know this way to see the boosters that are placed in the arena of the war (both in friendly and rival cities). However, if you know this way, it is very easy to react to them.
And the thing is that, in the War arena, the game orders the boosters by expiration: the first ones to finish are on the left.
This means that at a glance you can see which booster will end first, so you can anticipate their action.
In the example of the picture on the left, in Nibiru you can see that the jackpot ends before the dud, so in a friendly city, you will see that this is the right thing to do. If you see the opposite, you can act fast to it and anticipate it. Also in Nibiru, you can see that the pump booster (accelerator) ends before the vamp. However, in Karnak, the vampire booster ends before the pump (accelerator) booster.
A clear example is when you have placed a 20-minute jackpot in a rival city, and it reacted by placing a dud (but only a 10-minute dud). At a glance, you will see that the dud is placed first and then the jackpot, indicating that the dud ends before the jackpot.
