In the rule “Style”, directly after “Knobbed,” add “Forked,”.

In the subrule “Special Styles”, add the following to the list of Special Styles:

Forked
Benefit: If you select a Spell for a Duel that has a numerical position in the Wizard Ring as part of its Inputs, you may add 1 Star to the cost of the Spell to specify an additional numerical position in the Wizard Ring, provided that it is not the same position as the original selected position and the additional position still abides by the rules for that Spell, by informing the Battle Master of this choice. If you do so, for that Duel, the spell’s effects apply to the Wizards in both of the selected numerical positions of the Wizard Ring. This does not count as two castings of the Spell.