Megidramon

[When Digivolving] Delete 1 of your opponent's Digimon with 10000 DP or less. If no Digimon was deleted by this effect, trash the top 5 cards of both players' decks. [On Deletion] You may play 1 [Guilmon] and 1 [Takato Matsuki] from your hand and/or trash without paying their memory costs.