Photos of uncut sheets, which are quite abundant for the WOTC era but rare for sets released by Nintendo/TPCI, give exact information on rarities of individual cards
House, President and CEO Negan, the Cold-Blooded Neriv, Crackling Vanguard Neriv, Heart of the Storm Olivia, Opulent Outlaw Oros, the Avenger Piru, the Volatile Ponyback Brigade Queen Marchesa Reigning Victor Shanid, Sleepers' Scourge Snapdax, Apex of the Hunt Snapdax, Apex of the Hunt Sonic Shrieker Squall, Gunblade Duelist Syr Gwyn, Hero of Ashvale Tariel, Reckoner of Souls Terra, Herald of Hope Thanos, the Mad Titan Vihaan, Goldwaker Zurgo Helmsmasher Zurgo Stormrender Zurgo, Thunder's Decree
This set includes the popular OP-17 and OP-18 booster packs, allowing players to obtain previously released cards from OP-17 and strengthen their decks with cards from OP-18
Id say you should play this card if and only if you have a specific EDH deck like The Mimeoplasm, where you can dump it into the graveyard and use its stats there
When attacking, this card can Trash one of the opponent's 2-cost Characters and since we have a lot of cost-reduction cards, we can put higher cost targets in range for OP07-091-monkeydluffy to Trash
It's busted in Golgari, it would be busted in green, and it would be busted in black