This set was announced alongside Rise Of The Floodborn (set 2) for Lorcana
this card gains ATK equal to the original ATK of the sent monster, until the End Phase
This power stops working while Muk is Asleep, Confused, or Paralyzed
To go other routes for draw, I would consider including Grothama, All-Devouring to attack/fight/"sac" a bunch of "excess" creatures for draw, or Skullmulcher does similar in a pure sac way, or perhaps Ohran Frostfang, Regal Force, Toski, Bearer of Secrets, Benefactor's Draught, Mind's Eye, War Room, and while Nissa, Voice of Zendikar is off the Elf theme, it's still effective for more than draw
Having Moltres in your deck gives you a tanky Basic Pokemon that can survive attacks from most other Pokemon while providing a ton of support to your Bench
James leaves town