REDU format ruling
Morphtronic Cord

Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)Equip only to a "Morphtronic" monster. Each time the equipped monster's battle position is changed, destroy 1 Spell or Trap Card on the field.
Rulings
- Morphtronic Cord's effect targets 1 Spell or Trap Card.
- Morphtronic Cord's effect is mandatory. If it is the only Spell or Trap Card on the field when the equipped Morphtronic monster's Battle Position is changed, it must target itself with its effect.
- If Morphtronic Cord is equipped to a Level 4 or higher Morphtronic monster while Level Limit - Area-B is active, when the equipped Morphtronic monster's Battle Position to changed to Attack Position, it is immediately shifted back into Defense Position. When this occurs, the Trigger Effect of Morphtronic Cord only activates once.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.