Tengu format ruling
Morphtronic Boomboxen
Card effect (current official text)● While in Attack Position, this card can attack twice during each Battle Phase.
● Once per turn, while in Defense Position, when a face-up "Morphtronic" monster you control is targeted for an attack: You can negate the attack.
Rulings
- If Morphtronic Boomboxen activates its Attack Position effect, and an effect is chained that changes it to Defense Position, its effect still resolves.
- While Skill Drain is active, the Attack Position and Defense Position effects of Morphtronic Boomboxen cannot be activated, because the While in Attack Position and While in Defense Position effects are negated.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.