Royal Decree vs. Royal Surrender

Royal Decree
Negate all other Trap Card effects on the field.

Royal Surrender
Activate only when your opponent activates a Continuous Trap Card. Negate the activation and the effect of the card and destroy it.


Both cards seem to negate each other.
Will Royal Surrender destroy it?

at the activation of surrender decree has not resolved. decree would be destroyed

You need to think chains.

Chain Link 1: Royal Decree
Chain Link 2: Royal Surrender

The chain resolves backwards, which means that the effect of Royal Decree is not yet put in place.

2: Royal Surrender negates Royal Decree
1: Royal Decree is negated
0: Cards are sent to the Graveyard.

If Royal Decree was already active on the field, then Royal Surrender will not work.