Doubling Sun

You may only play Doubling Sun if you control
5 or more lands.
Make a copy of all basic lands.
Cycling: You and each opponent may landshift
one land you control to the basic land type of
your choice. You lose 1 life.
Flashback: {p/b}{p/g}{p/r}{p/u}{p/w}; Each opponent gains x
life where x is equal to each basic land in play.