Voltron

{2}{w}: Exile target artifact or enchantment
{2}{u}: Counter target spell
{2}{b}: Destroy target creature
{2}{r}: Voltron deals 3 damage to any target
{2}{g}: Regenerate target creature
{w}{u}{b}{r}{g} {t}: Each opponent sacrifices half of their permanents rounded up.
{5}: Target creature gains protection from the color of your choice until end of turn.