Guildpact will give your nonlands all colors and then your lands all basic land types
This red enchantment is just good as a helpful piece of burn-based interaction in an energy deck in EDH, and it also burns out the table once you get one of the many infinite energy combos the top-tier of energy cards can shuffle together to generate
Core Enforcer Trap Card/Counter When your opponent activates a card or effect while you control a face-up "Zygarde" monster: Pay half your LP
Its sitting around $240 right now
Then I added various Dragons, shored up the deck with spells and lands, and called it a day
Both of these Locations don't have a unique ability, but they ease the player into using them by being cheap, ink cost-wise, while also gaining you one lore at the start of your turn, so long as the locations stay on the field