East Altus Divine Tower

{t}: Add {c}
{t}: Add one mana of any colour matching a Great Rune you control
{5}{t}: Sacrifice a Grace, then search your library or graveyard for a Great Rune, reveal it, and put it into your hand. If you searched your library this way, shuffle it

The benediction of both Morgott and Mohg's Great Runes are held in this tower, conjoined as twins and
as omens