Nahiri, the Harbinger [Shadows over Innistrad Prerelease Promos] Base Set 1st Edition it loses 300 ATK and

it loses 300 ATK and DEF for each A-Counter during Damage Calculation only

" —Imran

Set: Alpha Edition Type: Artifact Rarity: Rare Cost: {4} Whenever a land is put into a graveyard from the battlefield

all face-up monsters you currently control gain 300 ATK

When Knight of the White Orchid enters the battlefield

Nahiri, the Harbinger [Shadows over Innistrad Prerelease Promos] Base Set 1st Edition it loses 300 ATK andSet: Shadows over Innistrad Prerelease Promos 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 your library. It gains haste. Return it to your hand at the beginning of the next end step.