A lot of my raiding experience was in MoP. My first ever Raiding was Wrath, but I was part of an actual raiding team in MoP and just PuGged WoD before quitting.
3 expansions of raiding with ML and then raiding in Vanilla Classic with ML.
EDIT: Oops, I meant 4. I always forget about Cata. I just never liked that expansions 'cause it destroyed the old world, so I don’t think about it LOL