It is alleged they also discussed loading a van with 1,000kg (about 157st) of ammonium nitrate explosive and how they would acquire such an amount without arousing suspicion.
The pair had been in dialogue using an app called Discord, the court heard. It is alleged Mr Edwards discussed his intention to kill Jewish people and Muslims and made claims about the “superiority of his own race”.
Mr Vincent is accused of researching software security for the attacks, while the defendants are alleged to have sourced aerial photos of attack locations, including the Jewish cemetery near Roath Park as well as a synagogue in the city.
The judge was told that both defendants would indicate not guilty pleas based on a lack of intent to carry out acts of terrorism, while a representative for Mr Edwards said some of his comments on Discord were nothing more than “rage-baiting”.
A provisional trial date has been set for February 2027.
