There is no sole clean driveway stains that’s most suitable.
Determine what works best for you.

If I was going to play a counter, I would probably play syncopate or maybe dissolve. Once the set it out thassas rebuff might be the best, but I dont think this deck wants any counters to be honest.

Running some duress in the sideboard is one option on my list to try out. The real goal is to take the verdict before they can cast it. Otherwise, just be careful how many permanents you commit to the board so you don’t get blown out by the verdict. Most of the sideboard comes in against Esper but I could see switching to something like this.

3 Doom Blade
2 Dark Betrayal
2 Domestication
4 Gainsay
2 Notion Thief
2 Duress

or maybe cutting a Gainsay perhaps.

On the note of black removal, I absolutely loved the Doom Blades out of the sideboard. They let you kill anything from GR or GW or Mono Blue (accept specter). It was the best card in my board by far and its not going anywhere. I would love to be able to run Hero’s Downfall, but the fact is that you won’t have double black enough to reliably cast it. Ryan might be right about adding a guildgate, but that might be too many lands that come into play tapped. Might be worth a try though.

Thanks for the feedback guys. If you give the deck a try, let me know what you think.

There is a 0% chance that Disperse is correct, especially with black in the deck. I don’t care what you cut it for, just cut it. If you see tremendous value in bouncing your own things, then you’re playing this deck too defensively. If a reactive spell with some proactive potential is what you want just play some counterspells. Post Born of the Gods I’d say Thassa’s Rebuff. As of now I’d go with Dissolve, Cyclonic Rift, minadeck Domestication, fourth Thoughtsieze… There are a ton of better options. You’re definitely not convincing anybody of the card by mentioning it as “hardly a change at all” without much reason to actual play it.