[All Turns] When this Digimon would leave the battle
area, you may place up to 3 Digimon cards with the
[Xros Heart] trait from this Digimon's digivolution
cards under 1 of your Tamers.
DigiXros -2:
[Shoutmon]×[Ballistamon]×[Dorulumon]×[Starmons] When
this would be played, you may place specified cards
from your hand/battle area under it. Each one
reduces the play cost.