The Infernal Arms

These abilities can be used as instants.
{r}{c} You invoke Stygius, the Stygian Blade. Deal 5 damage to any creature or opponent.
{u}{c} You invoke Varatha, the Eternal Spear. Counter any instant or sorcery spell.
{w}{c} You invoke Aegis, the shield of Chaos. Block any damage dealt to you this turn.
{g}{c} You invoke Coronacht, the Heart Seeking Bow. Hit each enemy for 3 damage.