Clash-of-clans – Can we start clan war league without our clan leader

Currently, only leaders and co-leaders can initiate wars. The clan chat will log the player who started or canceled the clan war search. If you want any more information on clan wars go to their FAQ.

There's no way to manually choose your opponent or skip opponents, the system will detect all clans matching your clans requirements and choose one of them. So if you're lucky you'll maybe be playing against the mentioned clan, although the chance is close to zero.

If you could choose your opponents there would probably be people abusing the system and boosting (Create 2 clans, let one clan win, then the other etc.)