Eye of the Primordial Dragon

At the beginning of your upkeep, you may discard your hand. If you do, draw three cards.
Discard a card: Eye of the Primordial Dragon deals 1 damage to each opponent, creature, and planeswalker they control.
"Origin: Unknown. Possibly in the time before my very first breath. But luckily its power precedes all my expectations. A fine addition indeed."
--Nicol Bolas