Red Skull and Mysterio/Maw/Enchantress

[Jeh123]

Red Skull has Hail Hydra which is a defensive effect that allows him to change the target from himself to another character.  I believe this happens in step 2d.

Mysterio (and the other characters mentioned) have abilities that allow them to use their mystic defense unless the attacked pays 2.

My understanding is that with bodyguard effects you can choose the order, but with Red Skull's "reverse bodyguard" the second effect doesn't exist at the start of Step 2d.  My question is, does the attacked still pay 2 or go against mystic, or will the whole trigger be missed and they will roll against Mysterio's defenses as determined by the attack type?

[Thoras]

The attacker will have an opportunity to pay when the attack switches over to the new character