CLAN WARS
Situation : 5 island fight (brawl of all level)
Win Condition : 3 win out of 5 island fight
Optimal Strategy:
1. Place your strongest fighter on reserves.
2. Set your other fighter on each island whom can at least hold out until the reserve fighter join.
3. Focus on only 3 win if the situation unfavorable. Thus, only set your reserves fighter on the island they can win.
Side Note:
1. Don't forget to take blesses specifically meant for clan wars which are available at clan citadel's Magic Pot.