Stand-Off - LVAL-EN069 Common 1st Edition

Target 1 face-up Attack Position Effect Monster on each side of the field; if both monsters are still face-up on the field, negate their effects, then if both their effects were negated by this effect, as long as those monsters are in face-up Attack Position, they cannot be destroyed by battle, are unaffected by other card effects, also they cannot attack or change their battle positions.