Thunderstormer change + new Mystery enemy

I made an idea for a Golden mode Summoner Boss (Thunderstormer) but it did not summon Mysteries. I want to change that for consistency reasons.

Volt Switcher

Summoned by Thunderstormer

HP: 50

Speed: Very Fast

Defense: None

Immunities: Energy

Ability: Thunderspawn - Upon death, the Volt Switcher turns into either a Bolt, Shock, Charge, Glitch (rarely), Speedy Boss (rarely), or Error (very rarely).

Now Thunderstormer does not summon the enemies it used to, only the Volt Switcher.