This way, the maximum continuously shielded period available via purchase is 14 days ( 1+2+7 + 1 + 1+2). If you purchase all three shields simultaneously, you will be able to re-purchase a second two-day shield and two additional one-day shields before the end of your shielded period, as the cooldown period on the shorter shields will have expired. If you purchase a shield while you have one (of any source) currently active, the purchased shield time is added to your current shield time. There are 3 options to choose from: One Day Shield If you choose, there is an option to buy shields from the shop for Gems. Your 3-day shield is a good time to upgrade your Buildings. When you start playing the game you get a free 3-day shield, which you should use to get started. Note that you do not necessarily have to lose a battle to gain a shield if your opponent destroys between 40% and 49% of your village without destroying your Town Hall, you will gain a shield as well as a defensive victory. You get a free shield courtesy of Supercell, during and after a maintenance break, for a short period of time. When 90% or more buildings are destroyed you will get a 16-hour shield instead (these two shields cannot be stacked together). When 40% of your village or your Town Hall is destroyed in a raid, you will get a 12-hour shield. This is to prevent farming and rapid loss of Trophies and/or Resources. Upon being successfully raided, you will be granted a temporary shield from attacks.

Clash of clans clan shield