Any model may replace its Æther-Fire Cannon with:

(Group)
EntryId: 63bd-b91e-cade-bf5a
Hidden: false

Constraints:

min: 1
max: 0
Options (2)

Modifiers:

decrement min 1
increment max 1
repeat for every 1 selections of model in parent
increment min 1
repeat for every 1 selections of model in parent