First, scale your gems, typically through cycling Moon-bacon Jazzer and Fearless Foodie and keeping a Prickly Piper. Then, scale shop using Gem Barrage. This is usually done with Titus Rivendare + Razorfen Flapper + Monstrous Macaw, but could be done with Rylak Metalhead + Briarback Drummer as well. Finally, the payoff for your buffed shops include Trench Fighter so you can use your Gem Confiscation in shop to triple its stats, and Felboar to eat buffed units in the shop.