Death Slinger (EX2-071) - Digital Hazard

When this card is trashed from your deck, gain 1 memory.
[Main] Delete 1 of your opponent's level 4 or lower Digimon. For every 10 cards in your trash, add 1 to the maximum level of the Digimon you can choose with this effect.

[Security] Activate this card's [Main] effect.