If this card attacks, destroy 1 Spell or Trap Card at the end of the Battle Phase if you control another "roid" monster.
How to Get
Can destroy spell/trap cards.
Requires that you have another Roid monster on the field to use effect.
Destruction only happens after battle.
Destroy Own Cards
You can use Stealthroid’s effect to destroy your own spell/trap cards that trigger when they are destroyed. Wild Tornado and Blast with Chain allows you to destroy a face-up card on the field. Statue of the Wicked special summons a token to your side of the field. Dark Coffin forces your opponent to lose a monster on the field or a random hand card.