Yes I said it
usually breaks through them because the likelihood of you not drawing a Discord or a BH in your opening hand is very low.
Usually I manipulate the AI by using BH to either deny it of the quanta it needs to play Dim Shields or to put it into the range where it can play something more expensive and then not have enough quanta to play another shield. For instance, my opponents has 21
, and is using Mono Aether with few Phase Dragons on the field. I can therefore assume that if I BH their quanta to 18
that they will play a Phase Dragon and not have the quanta to play a Dim Shield. Oh yes and the deck has a lone Explosion; if you're that concerned about Dim Shield chaining then you should probably swap the Gargoyle out for a Steal. I'm not saying that it always breaks through them, just that it's happened more often than not based on my experience. And in my experience these decks aren't (or I suppose I should say haven't been) anywhere near the top of the threat list.