Hyena Umbra [Planechase Anthology] Avacyn Restored Serum was once derived from

Serum was once derived from Mirrodin's blinkmoths

Set: Eventide Type: Legendary Creature — Treefolk Shaman Rarity: Rare Cost: {3}{B/G}{B/G} Indestructible

Last of the Abzan enters the battlefield with three +1/+1 counters on it

that player sacrifices a permanent for each soot counter on Smokestack

Hyena Umbra [Planechase Anthology] Avacyn Restored Serum was once derived fromSet: Planechase Anthology Type: Enchantment Aura Rarity: Common Cost: {W} Enchant creature Enchanted creature gets +1 +1 and has first strike. Totem armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)