well you see every expansion in GE has a theme and each theme has a corresponding weapons and costume that comes along with it.
During Arsene Circus expansion the theme was playing cards and circus. The costumse and weapon from that expansion were called Trump Series. which 'muricans might make it a meme if it was released today during elections.
The current theme of items in the latest expansion of GE is ‘Armonia’ which is like Vatican so the weapons and costume appears religious-ish. though there is a different theme series for demonic and angelic weapons.