Whenever @clashofclans tweets "update" or "maintenance", it's usually when an update is impending or complete. If your clan communicates with GroupMe, it's a great way to send out a notice to everyone whether they tweet or not.
If
New tweet from search
This Trigger fires every time a new tweet matches your search query. Limited to 30 tweets per check, and protected tweets will not be returned.
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Discover more time saving integrations for GroupMe and Twitter