GiWiHe (Gi = Giant, Wi = Wizard, He = Healer) is a very powerful trophy hunting strategy in Gold III and Gold II, and has brought me up to Crystal League with not that much effort. It can be mastered with ease, and is actually quite underestimated. Although it is not very cheap, it is one of the easiest, most cost-effective ways to raise your trophy count. Also, the best part of this strategy is that it is very effective for farming gold, and especially DE.
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Minimum Troop Housing Space Required: 200Minimum Spell Housing Space Required: (not specified)
Find a TH8 base with exposed Air Defense and lurable CC.
Check for CC troops with 1 minion. If none come out, great! If they do (and it's not a dragon/pekka), then destroy it with the lightning spell. If a healer comes out, dont worry. If a dragon or PEKKA comes out, it's fine, the wizards should be able to take it out when the time comes.
Locate the most exposed air defense. Drop all of your giants followed by about 5 wizards to take it out. If it is quite far away, use your Healing Spell. If not, you save some elixir.
Send in both healers, as well as the rest of your wizards.
Rage them if they come in contact with the Barbarian King/undead CC troop (dragon or PEKKA)
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Watch yourself get 2-3 stars and enjoy the gold and DE. After you start using this strategy for a few days, you will notice that you will be getting harder bases. Then, you should swap your lightning spell for another rage,as this will power your troops just enough to get to that last building to give you the second star. Up at Gold I and above, a 3 star is not practical for this strategy, although it will probably get the TH (lvl 8) and at least 60%.