Advanced format ruling
Stealthroid
Card effect (current official text)If this card attacks, destroy 1 Spell or Trap Card at the end of the Battle Phase if you control another "roid" monster.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.