It can be played as a tapped black land if you dont need protection, effectively giving you an extra spell slot in your deck
10 Agatha's Champion By today's game standards, a 4/4 for five mana is slightly below rate, but it's still passable for Limited in decks with mana ramp
The Avatar Horror has a steep Ward cost, while also synergizing with the Amass and the Ring tempts you mechanics
The only bad move on Wizard's part according to Rosewater from a 2017 article "The Un-ending Saga, Part 1," was that Wizards had little experience at that point with printing supplemental sets and massively overprinted the product
You do not pay the Casualty cost to cast the spell, only to duplicate it
Its mana costs make it an unappealing target for Limited play, but its true home will be Commander