Nahiri, the Harbinger [Mythic Edition] Serpent its controller may discard a

its controller may discard a card that shares a color with that spell

Ponder the depths of your insignificance

Set: Dissension Type: Enchantment Rarity: Rare Cost: {B}{R} If a spell or ability would cause its controller to gain life

"Life for life: this is the immutable law

Nahiri, the Harbinger [Mythic Edition] Serpent its controller may discard aSet: Mythic Edition Type: Legendary Planeswalker Nahiri Rarity: Mythic Cost: {2}{R}{W} +2: You may discard a card. If you do, draw a card. 2: Exile target enchantment, tapped artifact, or tapped creature. 8: Search your library for an artifact or creature card, put it onto the battlefield, then shuffle. It gains haste. Return it to your hand at the beginning of the next end step.