Galacticmon (BT21-062) - World Convergence Foil

[[Digivolve] [Snatchmon]: Cost 9]
[When Digivolving] By placing 4 cards with [Vemmon] in their texts from your trash as this Digimon's bottom digivolution cards, you may use 1. [Ragnarok Cannon] from your hand or trash without paying the cost.
[Start of Your Main Phase] Delete 1 of your opponent's Digimon.
[All Turns] When this Digimon would leave the battle area, by returning 4 [Vemmon] from its digivolution cards to the bottom of the deck, it doesn't leave.