WaruSeadramon (BT15-078 U) [Exceed Apocalypse]

Product Details

[All Turns] [Once Per Turn] When an effect plays an opponent's Digimon, until the end of their turn, all of their Digimon gain "[On Deletion] Lose 1 memory."
[When Attacking] Your opponent plays 1 level 4 or lower Digimon card from their trash suspended without paying the cost. [On Play] effects on Digimon played by this effect don't activate. Then, you may switch the target of attack to that Digimon.