Richard Sampson - Versus Royal Knights (BT13)

When an effect trashes this card from the security stack, you may play this card without paying the cost.
[Start of Your Main Phase] If there're 6 or fewer total cards in both players' security stacks, gain 1 memory.
[Main] If there're 6 or fewer total cards in both players' security stacks, by suspending this Tamer, 1 of your [Kudamon] may digivolve into [Kentaurosmon] in the hand for the digivolution cost, ignoring its level.