Neo-Spacian Dark Panther (POTD-EN005) 1st Edition [Power of the Duelist]

Once per turn, you can select 1 face-up monster on your opponent''s side of the field. While this card is face-up on your side of the field, until the end of this turn this card''s name is treated as the selected monster''s name, and it gets the selected monster''s effect(s).