Eldron, the Elf Demon

+1: You may have target opponent discard the top of their library, you may untap nonland permanents equal to that cards mana cost.
-X: Untap up to X lands or creatures you control. Tap X lands and/or creatures your opponents control.
-8: You get an emblem that says, "At the beginning of your end untap all permanents you control. Nonland cards in your hand have flash."