Obscuring Aether [Dragons of Tarkir] Alien Advisor you may play cards this

you may play cards this way without paying their mana costs

"Ixalli's fertile rays enliven us all

Duergars are prodigious workers with long memories

Set: Black & White: Noble Victories Type: Colorless Rarity: Holo Rare Retreat cost: Colorless

Reverse Type: Enchantment — Aura Enchant creature or planeswalker an opponent controls At the beginning of your upkeep

Obscuring Aether [Dragons of Tarkir] Alien Advisor you may play cards thisSet: Dragons of Tarkir Type: Enchantment Rarity: Rare Cost: {G} Face down creature spells you cast cost {1} less to cast. {1}{G}: Turn Obscuring Aether face down. (It becomes a 2 2 creature.)