If this Nexus card is revealed by your "Friend", it can be deployed without paying the cost.
[LV1][LV2] (Every Attack Step) Cards discarded by your "Friend" are added to your hand.
[LV2] (Every Attack Step) When a Spirit card is revealed by your "Friend", by sending Soul Core (Soul Core) from this Nexus to the Trash, give that card +1 or -1 Cost.