There are Planeshifted and Futureshifted cards, such as the original printing of Tarmogoyf
Having the discard not be a cost is usually an upside as you don't lose the cards if they counter it, but in a deck like dredge this will at times be a drawback as you actually want to put cards in your graveyard
Most Animar decks feature Ancestral Statue in their 99, even if the combo's not the focal point of the deck
Ever since its original printing, Dockside has simply been the second best reason to play Red decks, making life easy in a format where our decks are most limited now by the powerful cards they can play, but by the amount of mana they can make to cast as many of these cards as possible as quickly as possible
Began a multi-post deckbuilding experiment
While not intentionally a budget deck, the only expensive cards in the whole deck are Arclight Phoenix and Watery Grave, which are both great cards to have in your collection anyway