Everquest 2 has Heroic Opportunities. They were similar to skillchains where other classes were needed to get certain effects (big damage, group regen, etc...). All classes had some solo combos too, example as a cleric you would hit two skills then a big finisher you could also get a rare combo that would regen your mana.

In one of the raids you needed to to hit a specific Heroic Opportunity to begin doing damage on one of the bosses. Added another element to the fight and was kind of fun.