Guild Wars 1 has a very interesting team based PvP with a deck of skills among hundreds you have to pick beforehand, it generated a lot of team creativity, metas, counter metas, updates breakings metas and generating news ones etc. It’s in my opinion way more interesting than the generic 5v5 with fixed skills per character that has dominated skill based PvP games since then (including Guild Wars 2, at least on release), probably because it’s more accessible for the mass.