Does the card have to summon two or can it only summon one if you only have one in your graveyard? Or if you have two but you only want one.
In this case yes you do have to summon 2 of them. If the card said u can summon up to two then you wouldn't have to summon two of them but the card just says summon two batteryman monster. Hope this helps!!!!
Yes, you must select and special summon exactly 2 Batterymen in your graveyard. You cannot activate the card if you have less than 2 in your graveyard. And you cannot activate the card with two in your graveyard and then choose to only special summon 1. However, if another card is chained that removes 1 of those Batterymen in your graveyard leaving you with only one when Portable Battery Pack resolves, you can still special summon the remaining Batteryman.
You have to summon 2 yes its a requirement, you must have 2 in your grave, and you must summon 2
