Skeletons spawned by the spell are also able to trigger Hidden Teslas.

Does bat spell trigger Tesla?

The Bat Spell

It only attacks defenses, which means it won't lure Clan Castle troops. It also won't trigger any traps beyond the Tesla. It's most effective against point defenses like Archer Towers, Teslas and the Queen used as a defense.

Do skeleton spells trigger CC?

Like Skeletons summoned by Witches, they do not trigger Traps or Clan Castle troops. The spells skeletons does much less damage to resource buildings to prevent this to be overpowered.