Overlord of the Balemurk is especially strong in green and black reanimator decks, which focus on returning your most powerful creatures and creating a big graveyard
Creatures (7) Lands (24) Spells (29) 4 Shock 4 Opt 4 Lightning Strike 4 Sinister Sabotage 4 Chemister's Insight 2 Expansion 1 Mission Briefing 4 Discovery 2 Beacon Bolt Sideboard The prospect of transforming from a relatively normal Izzet deck into a Thousand-Year Storm combo deck is actually really exciting
This plays well into blacks sacrifice themes but also completely negates the potentially card-advantageous aspects of certain removal spells
Johto has a ton to pull from for a set, including the introduction of baby Pokemon, and with so many classic Pokemon from the region still yet to see appear in any set, there are plenty of options for some fantastic cards
It doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, or so on
While looking for casual cards that might be in demand thanks to the new Commander decks makes sense, Zirilan of the Claw is a weird choice since the Commander 2017 deck is five-color and Zirilan of the Claw is best as a commander rather than just another card in the 99
