Raging River [Unlimited Edition] Dragons of Tarkir Prerelease Promos Clockwork Avian enters the battlefield

Clockwork Avian enters the battlefield with four +1/+0 counters on it

" —Seshiro the Anointed

you may draw a card unless that player pays {1}

Set: Kaladesh Prerelease Promos Type: Artifact Rarity: Rare Cost: {4} Whenever you cast a spell

Raging River [Unlimited Edition] Dragons of Tarkir Prerelease Promos Clockwork Avian enters the battlefieldSet: Unlimited Edition Type: Enchantment Rarity: Rare Cost: {R}{R} Whenever one or more creatures you control attack, each defending player divides all creatures without flying they control into a "left" pile and a "right" pile. Then, for each attacking creature you control, choose "left" or "right." That creature can't be blocked this combat except by creatures with flying and creatures in a pile with the chosen label.