Restricting enemy dual lands just meant it was harder to play enemy colors and that it limited what players were able to play
Goblins includes an Ambush Commander, a card originally printed in Scourge
Critical creatures vary based on the scenario
The face commander is Breya, Etherium Shaper, an Esper artificer who picked up the color red and the ability to combo with a stiff breeze
Nesting Grounds lets you move any type of counters, so of course that includes charge counters
If you want to go for flavor, you could add all of the new Bloomburrow -flavored planeswalkers: Teferi, Time Raveler, Nissa, Who Shakes the World, Narset, Parter of Veils, Karn, the Great Creator, Jace, the Mind Sculptor, Tamiyo, Field Researcher, and Elspeth, Suns Champion