Supporting your clanmates
When clanmates ask for troops, a message is attached to the donate button. If they request soninjaing specific, give them what they ask for. If you don't have what they need, don't just give them random troops. Doing this can throw a wrench in their strategy and they'll end up just dumping those troops in Goblinland. Just tell them you don't have what they're asking for, they'll understand. If they ask for "defensive troops", DON'T give them Giants. I know it seems like it would make sense because they can take a hit, but they don't hit hard and are really slow. That makes them useless against troops. The best way to help your clanmate defend is with Archers, Wizards, and Barbarians. Archers can defend against both land and air enemies, Wizards deal splash damage (you'll get less of these, obviously), and barbs just hit hard. Remember this when you are donating, it makes all the difference between being considerate, and being "that guy"