X-Men First Class #5

3,313

Sleeping Gas
Dart

X-Men #017

1,623

Sleeping Gas

Uncanny X-men #037

1,485

Sleeping Gas

Uncanny X-Men #022

1,588

Sleeping Gas

Uncanny X-Men #002

1,692

Sleeping Gas

Bizarre Adventures #27 (X-Men)

2,578

Sleeping Gas