In my experience with Mono Blue on Arena and in paper, the card will catch players off guard
[Main] When digivolving one of your Digimon into a Digimon card in your hand with [Garurumon], [Omnimon], or [Greymon] (other than [DoruGreymon], [BurningGreymon], or [DexDoruGreymon]), in its name, you may suspend this Tamer to reduce the memory cost of the digivolution by 1
If you do, transform Eirdu
However, it also includes an enters-the-battlefield ability that allows you to target a player to search their library for that card and put it into their hand
Constructed from low-IR laminate fabric paired with durable 500D Nylon, the sleeve minimizes thermal signature while offering robust protection against field wear and environmental exposure
Once youve paid the cost in the standard manner, which in this example means Exerting 1 Ink card in your Inkwell, you can choose to move a Character to the Location