Dokuson Aruba

[Start of Your Turn] If you have 2 or less memory, set it to 3. [On Play] 1 of your Digimon with [Lucemon] in its text on the field may digivolve into a Digimon card with [Lucemon] in its name in the hand or trash without paying the cost. [Your Turn] When any of your Digimon digivolve into a Digimon card with [Lucemon] in its name, by suspending this Tamer, gain 1 memory.

Inherited effect

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