Am I Bluffing?

Target a spell in the stack and secretly choose "bluffing" or "not buffing".
The caster of the spell has to guess your choice.

If they choose:
•bluffing:
-b: nothing happens.
-nb: spell gets counter and you deal 2d20d.
•not bluffing:
-b: you deal 2d20 damage to them.
{dash}nb: spell gets countered.