Ryutaro Williams [EX8-065] (Digimon Liberator Debuggers Set) [Chain of Liberation]

[Start of Your Main Phase] If your opponent has a Digimon, gain 1 memory. [Your Turn] When one of your Digimon with [Tyrannomon] in its name attacks, by suspending this Tamer, that Digimon may digivolve into a Digimon card with [Tyrannomon] in its name or the [Dinosaur] trait in the hand with the digivolution cost reduced by 1.