Code Cracker Fang (BT17-091) - Secret Crisis

[Security] Play this card without paying the cost.
[Start of Your Turn] If you have 2 memory or less, set your memory to 3.
[Main] [Mind Link] 1 of your Digimon with the [Dark Animal]/[SoC] trait. (Place this Tamer as that Digimon's bottom digivolution card if there are no Tamer cards in its digivolution cards.)
[Rule] Name: Also treated as [Eiji Nagasumi].

[All Turns] While this Digimon has the [Dark Animal] or [SoC] trait, it gains [Alliance] and [Blocker].
[End of All Turns] You may play 1 [Eiji Nagasumi] from this Digimon's digivolution cards without paying the cost.