If your Pokmon have high HP but a retreat cost to match or you foresee retreating being a part of your strategy, cards like X Speed and Leaf which allow you to move your Pokmon in and out of play for less Energy, are crucial
Weve done the East Coast, weve done the beach, weve visited familythis time we wanted to go somewhere affordable, yet a little less traditional
If you're running an artifact deck, a Foundry Inspector or equivalent cost reducer will bring the mana cost of the first card you draw from it in line with (an undiscounted) The One Ring
The ability won't affect those spells and it won't affect spells that those players cast before you activated it
I have already built a Commander deck around New-Sheoldred and it includes Mono-Black Group Hug like Howling Mine, mass card draw like Dark Deal, and lifegain matters cards like Vito