What Digimon are referred to as "other Digimon" by this card's [All Turns] effect?
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Official Ruling
It refers to Digimon other than the Digimon that would leave the battle area. However, if multiple Digimon would leave, you can place Digimon other than 1 of those Digimon in the security stack to meet the conditions.
Source: BT24-040 Venusmon