Summer Schoolwork Successful!

Activate this card by placing 5 Schoolwork Counters on it. If a monster(s) is Special Summoned from the Extra Deck, or a card(s) is sent from the Deck to the GY, by a Spell/Trap effect: Remove 1 Schoolwork Counter from this card, then if the number of Schoolwork Counters on this card is now 0, destroy this card, and if you do, gain 4000 LP, then Set 1 "Schoolwork" Trap from your Deck or GY, then if you have 1 or less cards in your Deck, you win the Duel.