/cast Cataclysmic Gladiator's Badge of Dominance
/cast Dark Soul: Knowledge
/cast Cataclysmic Gladiator's Felweave Handguards
This is more generic as as:
/cast Dark Soul
Then it doesn't matter what trinkets/gloves you have on. You'd want to choose this route in the case where you have two sets of gloves that both have an enchant on them - so whichever ones you have on will be used.
Otherwise, if you have on a pair that isn't mentioned in your macro, it'll actually try to switch them to the pair you mention explicitly in the macro.
13 = trinket1
14 = trinket2
10 = gloves