These are often creatures or enchantments that make you the monarch when they enter the battlefield, though there are a few niche effects that work in other ways
To celebrate the release, select retailers in the US and Canada will be distributing a special promo card of Sandaconda

1 Wildcard of any rarity A common (18%), uncommon (58%), rare (19%), or mythic rare (2%) card from the Lorwyn Eclipsed main set An uncommon (2%), rare (less than 1%), or mythic rare (less than 1%) fable frame card A rare (1%) or mythic rare (less than 1%) borderless nonland card A borderless reversible shock land (less than 1%) 1 Rare or mythic rare A rare (78.2%) or mythic rare (13.6%) card from the Lorwyn Eclipsed main set A rare (4.6%) or mythic rare (1.2%) fable frame card A rare (less than 1%) or mythic rare (less than 1%) borderless nonland card A borderless reversible shock land (less than 1%) 1 Traditional foil card of any rarity A common (60.4%), uncommon (29.8%), rare (6.5%), or mythic rare (1.1%) card from the Lorwyn Eclipsed main set An uncommon (1%), rare (1%), or mythic rare (less than 1%) fable frame card A rare (less than 1%) or mythic rare (less than 1%) borderless nonland card A borderless reversible shock land (less than 1%) 1 Basic land A non-foil (40%) or traditional foil (10%) default frame basic land A non-foil (40%) or traditional foil (10%) full-art basic land 1 Non-foil helper card or double-sided token Note: Percentages may not sum to 100 due to rounding

Konami produced only a handful, and the card exists purely as a collectors trophy
As the players like to point out, KeyForge is the only card game where opening a booster pack IS building your deck. Instead of chasing the best meta cards, youre learning to master what youre given
The more coin flips, the more chances to do damage and overpower high HP Mons