Zap ⚡ is a 2 Elixir Common card that is unlocked from the Builder's Workshop (Arena 5). It is an area-damage, air-targeting spell with a medium radius and low damage. When used, it can stun enemies in its radius for 0.5 seconds.
If you see something you really don't like, do you avoid/ignore it and let it thrive risking you having to forcefully encounter it again (maybe you won't) or put a stop to it right away to stop it from spreading?