Throne of Eldraine, 5 Legendary Artifact (Rare)
As Throne of Eldrain enters the battlefield, choose a color.
{T}: Add four mana of the chosen color. Spend this mana only to cast monocolored spells of that color.
{3}, {T}: Draw two cards. Spend only mana of the chosen color to activate this ability.
Glad to finally see some strong monocolor support. And wow, I think this is just an instant staple for monocolor decks. Super powerful ramp with card draw attached, though using it for draw cuts off an extra 4 mana you could use. Figures that a busted set would get a busted card as its namesake