The former gives your Dragons indestructible plus an alternate win condition in a fun five-color Dragon Commander deck
The Glossy and Transparent side makes the information of card inside clearly visible and the Black Matt side protects your private information High Quality: Superior plastic material are made of non-PVC and no acid polypropylene ensures it sturdy and durable, and largely prevents your cards from damaging, scratching, and fad, provide perfect protection for your trading cards
I could loop a Wurmcoil Engine or Myr Battlesphere as they make enough creatures to use mana from Ashnod's Altar to pay for Deathmantle activations
If youre able to consistently get nonland cards in your graveyard, Green Goblin is a potent cost reduction engine
Use it on a Death's Shadow to give something a massive penalty while gaining a 13/13
The main ability though, is that you can pay two mana and tap it to gain mana equal to your devotion of any one color