I have added a little sideboard tech card for the Mono Red in their matchup against control and midrange decks. Due to the recent build of the deck which focuses on Goblin tokens and Dash creatures, I think this card will work well on that strategy.

The card is Impact Tremors:

Here is the current Mono Red decklist with that card sideboard:

Maindeck
21 Mountain

4 Foundry Street Denizen
3 Goblin Rabblemaster
2 Lightning Berserker
2 Mardu Scout
4 Monastery Swiftspear
1 Goblin Heelcutter
3 Zurgo Bellstriker

4 Stoke the Flames
4 Lightning Strike
3 Wild Slash
4 Hordeling Outburst
4 Dragon Fodder
1 Searing Blood

Sideboard
1 Arc Lightning
1 Goblin Heelcutter
1 Goblin Rabblemaster
4 Impact Tremors
1 Magmatic Chasm
2 Roast
2 Scouring Sands
3 Searing Blood

It is just an easy sideboard plan by boarding out the Wild Slashes and Searing Blood and substitute the four copies of Impact Tremors. You can also cut some Lightning strikes for the fourth Goblin Rabblemaster and another Goblin Heelcutter. For Abzan Midrange/Control matchups, you can cut all the strikes for two Roast.

We didn’t include Eidolon of the Great Revel but I think this sideboard plan would still have an impact (no pun intended) on the mentioned matchups.

I’ll give it a try for tomorrow’s FNM tournament and we shall see what happens.