Duel Tower (MP22-EN269) - Prismatic Secret Rare

At the start of each Battle Phase: Each player can reveal 1 monster from their Deck that does not have ? ATK, you banish them face-down, then the player who revealed the monster with the highest ATK (each player, if tied) can Special Summon 1 monster from their hand, and it can attack directly while on the field. Once per turn, during the End Phase: You can activate this effect; if you control this card during the End Phase of your next turn, destroy all cards on the field.