The Scadutree

{u/b}{b/r}, exile The Scadutree from your hand:
You get an emblem with "At the beginning of
your upkeep chose one: Legendary creatures
you control get +1/+1 until end of turn,
Legendary creatures your opponents control
get -1/-1 until end of turn, or each opponent
lose 1 life and you gain 1 life"

The Scadutree enters the battlefield tapped
{t}: Add {u}, {b}, or {r}.