So the idea i'm working on here is a creature that can be targeted whilst burrowed. However, targeting it results in some sort of consequence for the attacker. The mockup that I have now is a
Trapdoor Spider. I suppose that it could deal poison damage to whoever targets it (either creature or player). Simple enough.
However, I don't know how such a card would work. The entire purpose of "burrow" is that it makes the creature essentially immaterial. This card would would completely go around that. Thus, my dilemma. Is the idea fine as it is, or should I come up with a new ability for it to use? Do note that my question is more to do with the mechanics of this card; the use of a "Trapdoor Spider" isn't important, nor is it set in stone.