Guidonaraharas

{g/w}: Tap or untap a creature.
{u/b}: Draw a card. Each opponent discards a card.
{w/b}: Gain 1 life. Each opponent loses 1 life.
{r/g}: Deal 1 damage to target creature or player.
Place a +1/+1 counter on target creature for each
creature destroyed this way.
{u/r}: Counter target spell and gain control of it.