The game will allow me to attach multiple of the same Attachment card (eg Healing Presence) to the same character, but it's not clear if there is a multiple effect. When I look at the target character I see only one card present of each given type. Is there any effect of stacking multiple attached cards of the same type on one character? Are the effects cumulative? Do the durations overlap at least? Eg if I attach a Healing Presence on round 1 and attach another Healing Presence on round 2, will the effects last at least until round 3? Even if the effect is not doubled during round 2? It would help to explain this on the Help page, or, if there is no effect at all, have the game engine refuse to attach the second card of the same type to the same Character.
No, attchments of the same name overwrite each other (duration changes to the latest one played). No multiples (and a maximum of 3 attached at one time). It's mentioned for terrain attachments, but I agree that it should be mentioned for character attachments as well - just to be clear. Good feedback! (it's possible this is mentioned in either the loading hints in game - or the tutorial)