legendary duelists soulburning volcano booster box Duelists: Pack Box is in excellent condition unless otherwise noted Yu-Gi-Oh! Legendary Duelists: Soulburning Volcano

It has the following rules text: You may cast this spell for N if you also return an unblocked attacker you control to hand during the declare blockers step. If the sneak card being cast is a creature, it also has the text that it enters tapped and attacking. The particular time window means that once blockers are assigned but before the damage step, you can cast a sneak card

No PVC / Acid free

The death of the first rat will trigger Thornbite Staff's ability and untap Marrow-Gnawer, letting you then do to it again to make three more rats

As long as The Lunar Whale attacked this turn, you may play the top card of your library

Heroic Gift definitely isnt far off, though