How does the effect of this card resolve?
D: plays grab on R
R: Plays Dodge
D: plays Horror of Horrors on Dodge
Now, my interpretation is that Horrors cancels the dodge, D gets the free follow up attack, and then grab still resolves and D can play yet another attack as the follow up to grab?
The opposing view is that the follow up to Horrors happens... and then that's it... no more Grab.
If the first interpretation is correct, than horrors in indeed extremely powerful, and if the other is correct... then horrors is sort of a useless play to counter the dodge.
The Evil-Do That I Do-Do
The first interpretation is correct. The Horror of Horrors basically cancels a card that was played. The player of the HoH then gets a follow up attack on the person they played the HoH on. Then the conclusion to the encounter would happen with the person who played the Grab then able to play a free attack on the person they grabbed.
I hope this helps.