I have seen friends summons which have +1, +2 or more on them. I some how got a +1 on one of my characters. I then somehow made it go from my character to a weapon. The menu shows a weapon with a +1 with an arrow pointing to a sphere. Is this a movable buff? what does it do to make a summon, weapon or character become a +x? Also, how do I get more since it seems I only have 1?
Yes, the plusses are removable for a 30k rupee fee. It is easier to just feed weapons you don't need with pluses to whatever you want so you don't have to remove them from things you want to keep to put in something else.
Weapons with pluses can only be fed to characters or weapons. Summons with pluses can only be fed to other summons. Each plus is worth +5 ATK and +1 HP. You can get pluses from legend gacha or from the rupee gacha.
Not sure if any of the mods still support this community, but they should be aware that the forums are infested with bots and that their forum needs to be upgraded.