When you would play this card, reduce its memory
cost by 3 for each Digimon and Tamer your opponent
has in play. [On Play][When Digivolving]
<De-Digivolve 1> all of your opponent’s Digimon.
Then, delete all of your opponent’s level 4 or lower
Digimon. [End of Opponent’s Turn][Once Per Turn]
Delete all of your opponent's Digimon with the
lowest play cost.