343 Guilty Spark

Abilities from non-equipment artifacts cost {1} less to activate.
Whenever a Halo Ring enters the battlefield, each player discards a card at random.
"Greetings. I am the Monitor of Installation 04. I am
343 Guilty Spark. Someone has released The Flood.
My function is to prevent it from leaving this Installation. But I require your assistance. Come. This
way."