[Your Turn] When this Digimon digivolves into a Digimon card with [Myotismon] in its name in your hand, reduce the memory cost of the digivolution by 1.
Security Effect
[Your Turn] While this Digimon has [Myotismon] in its name, all of your Digimon with <Retaliation> can also attack your opponent's unsuspended level 4 or lower Digimon.
