You can play a Pokmon and then attach an Energy Card
Others have resisted the horse invasion, inventing cards like 'Horseocalypse', an artifact that can trivially exile all horses, 'Sparricus the Unhorse', a Kirin that synergizes with non-horse creatures, or 'Ketamine', a joke artefact that certainly works in the horse deck but feels rather against the spirit of the thing
A very slight diamond cut is allowed
With all of the themed packs being based on Ravnicas guilds, your forty-card deck is basically always going to be split between either three or four colors, but having the right colors of mana was a surprising non-issue in my match
But take the most expensive card in Magic, a Limited Edition Alpha Black Lotus
This is due to the fact that the cards go out of circulation