Absolute Powerforce - Card Rulings - Yu-Gi-Oh!

You cannot Special Summon “King of the Skull Servants” or other monsters with ? ATK using this effect.
The effect to destroy “Skull Conductor” also activates during your opponent’s Battle Phase.
If “Skull Conductor” is face-down it won’t be destroyed at the end of the Battle Phase.
You can Special Summon one monster with 2000 ATK or one monster with 2000 ATK and one monster with 0 ATK if you
want.
You look at the printed ATK of the monsters you want to Special Summon.
Shield Worm
ABPF-EN099
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.
Changing this card to Defense Position and sending cards to your opponent’s Graveyard 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 Graveyard, and then destroy “Shield Worm” with “Limit Reverse.”