Tomonori Ryusenji

Effect

[Your Turn] When an effect places a Tamer card in one of your Digimon's digivolution cards, by suspending this Tamer, gain 1 memory. [End of Opponent's Turn] [Once Per Turn] If this Tamer is suspended, 1 of your Digimon with a Tamer card in its digivolution cards may digivolve into a Digimon card with [Dex] or [DeathX] in its name in the trash without paying the cost.

Source Effect

Security Effect [Security] Play this card without paying the cost.