Arata Sanada (BT5-090) [Battle of Omni]

[Start of Your Turn] If a Digimon card with [Unidentified] in its type is in your trash, gain 1 memory. [Your Turn] When one of your Digimon digivolves into [Diaboromon], you may suspend this Tamer to play 1 [Diaboromon] Token without paying its memory cost. (Diaboromon Tokens are level 6 white Digimon with a memory cost of 14, 3000 DP, and are Mega form, Unidentified type, and Unknown attribute.)