Give ActionA the effect "Triggers the cooldown of ActionB upon excecution." Put ActionB on cooldown for 0.5s when you use ActionA. This is long enough to prevent you from activating ActionB unintentionally unless you're being super overzealous with your button mashes--in which case, be less overzealous with your button mashes--but short enough that you can still double weave ActionB if you want to do so intentionally.