Edison format ruling
Shield Worm
Card effect (current official text)When this card is Summoned, it is changed to Defense Position. Then, send 1 card from the top of your opponent's Deck to the Graveyard for each face-up Insect-Type monster you control.
Rulings
- Changing this card to Defense Position and sending cards to your opponent’s GY are both parts of the same Trigger Effect.
- They occur one after the other, so you would miss the timing to activate "Tragedy."
- If you Special Summon this card with "Limit Reverse" you will switch it to Defense Position, send cards from your opponent’s Deck to the GY, and then destroy "Shield Worm" with "Limit Reverse."
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.