This is useful in two ways
Archivist of Oghma The problem with Stax cards that prevent certain actions, like Aven Mindcensor, is that while you might get the drop on one player, from then on your opponents can play around your card until it's removed
It is one of the narrowest bounce spells in that it can only hit dorks however it is being played in a different capacity to most other bounce where it is all about costing just the one mana
It triggers at the timing when this card is in the trash and your [Dorugoramon] would be deleted
The issue though is that even in those situations though, I feel like you're better off spending some XP and getting the upgraded Prepared for the Worst instead as it provides a lot of solid upgrades for just 2 XP, and since you probably are going to slap it on Stick to the Plan it's a fairly decent use of 2 XP since you'll use that card every game
Thats because its a Tera Pokemon, which not only changes its type but also prevents any damage being dealt to it while on the Bench