[Digivolve: 3 from [Siriusmon] w/[Arcturusmon] digivolution card]
[All Turns] [Once Per Turn] When another Digimon is deleted, you may play 1 level 4 or lower Digimon card with [Gammamon] in its name from your trash without paying the cost.
[End of Your Turn] [Once Per Turn] By placing 1 Digimon card with [Gammamon] in its text from your hand or trash as this Digimon's bottom digivolution card, delete 1 of your opponent's Digimon with DP less than or equal to this Digimon's DP.