EUR/PLN has been increasing since 2008. It gained as much as 17,000 pips and is now trading at 4.9-5.0, its highest price in history. This is a signal to start a set of sell limits according to this scheme:
So, starting from the current prices, place a grid of sell limits in an increment of 500 pips. Take profit on a breakout, either at 1 pip above the first order or after a 100 pip rise.
This strategy is called grid trading, which is usually used on cross rates. It involves holding positions that are significant in time and distance. For this reason, we recommend using swap-free accounts, not increasing the volumes in the grid (0.01 standard lot for every $ 1000 of the deposit) and monitor price movements.
Good luck and have a nice day!