Goat format ruling
Timidity

Card effect (current official text)Neither player can destroy Set Spell and Trap Cards on the field until your opponent's next End Phase.
Rulings
- While the effect of Timidity is applying, all effects of a card which would destroy a Set Spell/Trap Card are negated.
- While the effect of Timidity is applying, you cannot destroy a face-down Monster Card equipped to Relinquished.
- While the effect of Timidity is applying, and your opponent activates Heavy Storm, face-down Spell/Trap Cards are not destroyed but face-up cards will be.Steve Okegawa,
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.