Things that block Changeling attacks but probably shouldn't

[Spy_Guy]

I have a better idea: don't be terrible at changeling.

You literally get to keep someone down for 50 cycles if you're smart about how you use neurotox and acid spit. As we know a cycle is 3 seconds.
How someone manages to keep a person asleep for two and a half minutes without removing their headgear + mask is beyond me.