Chains of Mephistopheles by Heather Hudson Chains of Mephistopheles | Illustration by Heather Hudson Honestly, I have that same face after I look at Chains of Mephistopheless price and try to read its effect at the same time
You want to always flip Terra into Esper Terra, which is the main reason to use Terra as a commander
Boomerang is a reasonable card by itself, as are Grasp of Darkness and Burn Bright
You might also consider running Horn of Gondor to increase your human creature count, or Karvanista, Loyal Lupari to spread out +1/+1 counters on attacks, or even Cloaked Cadet for some extra card draw
These cards are separate from Magic: The Gathering lore, and are instead cards based on other franchises such as Lord Of The Rings, Doctor Who, or, in this case, AMC's The Walking Dead show
They usually have their own creature type too, but not always