Yrntrn, Beacon of Progress

{t}: Add one mana of any type. Spend this mana
only to cast historic spells. Yrntrn, Beacon of
Progress deals 2 damage to you.
{w}{u}{b}{r}{g}, {t}: Fatecast Arne's Last Judgement. Activate this ability only if there are five colors
among creatures on the battlefield. (To fatecast,
exile this from the battlefield, then cast its Fate side
without paying its mana cost. Fatecast only any time
you could cast this card's Fate side.)