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Do you have to attach the Battle Master's Upgrade side? My Wife pulled 2 Lionizers in Turbo Sealed but pull no Orange. When I KO'd Lionizer, would she be forced to scrap EM24 IR Laser Launcher, or could she choose not to attach Lionizer?

Yes, you must attach the Battle Master's Upgrade side. When you attach the Battle Master, you must scrap the older upgrade; in this case, EM24 IR Laser Launcher.
Source: Wizards of the Coast (2019-07-12)    【Link to Ruling】
Tags: Battle Master