Irka, Shrine of the Underworld

{t}, Pay 1 life, Sacrifice Irka: Search your
library for a nonlegendary land card, put it onto
the battlefield, then shuffle your library.
{t}: Add {c} for each legendary land you control.
{1}{r}{r}, {t}: Until end of turn, if a red source you
control would deal damage to an opponent or a
permanent an opponent controls, it deals that
much damage plus 2 instead.