Cursa
Counterpoke with armoured DB2 at all times.
There's a lot more options for dealing with Enchantress' F3 though rather than Brainiac's, since his pretty much keeps you at the range he wants, but you could forward dash on a read of a second F3 by Enchantress and punish.Well yeah her range is great so people will be scared to press anything after, I honestly think you'll be able to do another f3 after the far f3 is blocked similar to what you see Brainiac do in the corner with multiple f3 pressure
If you mean using far/regular F3 to catch people