Saeros Splitroot

{t}{1} Venom - Place a +0/-1 counter on target
creature until the end of the turn.
{t}{b}{g} Rivers Run Red - Place a +0/-2 on all attacking and defending creatures. This may be
played as an Instant.
{t} Crown of Spiders - Add {g} or {b} to the mana
pool. This may only be used to cast
Enchantments or Sorcerys.