TH7 and early to mid level TH8s are almost always attacked in war with dragons. Designing one’s base with that in mind is paramount. For TH7s, one is most limited as they only have 2 air defenses. With the ability to take out one with lightening spells immediately, one is just not enough to protect the base. A well-thought out base can fool some people, but good players will 3 star every TH7 with ease. For TH8s, base design is critical.
It is important to create you base so that dragons path away from the air defense, but stay within its range. Watch the video below to see how.