Ultimately, any mechanic that alters the fundamental rules of the game across all formats should be considered incredibly carefully, especially when it will drastically warp all future gameplay around a handful of new cards
Cut Commander's PlateCommander's Plate, Nykthos, Shrine to NyxNykthos, Shrine to Nyx, and Shinka, the Bloodsoaked KeepShinka, the Bloodsoaked Keep to reduce some of the deck's explosiveness and cost
And Thats the end of things
Galloping Lizrog Galloping Lizrog basically doubles the number of +1/+1 counters on your side of the field, but in a very eggs-in-one-basket approach
Considering ReshiZard has a whopping 270 HP (which is high even for Tag Teams), it has a lot of room to pile up damage counters and turn that into a devastating attack