Below is the unofficial checklist for Series 6. The ones in bold are the ones I have.

Cable (with Cable #73)

Cable (Brown Costume, Chase)

Deadpool (w/ Doop pack-in) (with Deadpool #3)

Deadpool (with red poster)

Juggernaut (with Uncanny X-Men #13)

Juggernaut (with red poster)

Phoenix (Green costume - chase) (with Uncanny X-Men #101)

Phoenix (with gold poster)

Dark Phoenix (Red costume - variant)

Dark Phoenix (with gold poster)

Punisher (Movie)

Punisher (with grey poster)

Wolverine (Brown Costume) (with Uncanny X-Men #213)

Wolverine (Brown Costume, with grey poster)

Wolverine Unmasked (Series 3 re-release with Legends VI packaging)

Wolverine Unmasked (Series 3 re-release with Legends VI packaging, with gold poster)