Exar Kun and Ulic versus Bane and Zannah
The setting is in a random field somewhere. Both parties are ready to kill each other, armed with the items and powers of their peak appearances in canon materials.
Essentially, this is DLotS Kun and Ulic versus Bane and Zannah at their peaks. Orbalisk armor is removed for fairness, as is the actual amulet blasts of Kun. The amulets themselves, however, are not removed since we cannot infer Kun's power post-Yavin without them (He's always wearing them). But you can infer that they are typically not being used unless they appear activated on-panel when presenting evidence.