Offspring is a new keyword found on creature cards
Before Wizards of the Coast launched the game, it went through multiple test phases, and Delta Playtest cards were among the last before the Magic the Gathering release date in 1993
The game began horribly again
Quoting WotC here: Warp is a new ability that lets cards travel to the battlefield faster than expected. This mechanic has huge implications for MTG, considering that many effects help us take advantage of a creature, even temporarily, and sometimes it'll feel like cheating
We also can take advantage of powerful ramp like Somberwald Sage and Nikya of the Old Ways, and it also lets us break the symmetry on noncreature hate cards like Ruric Thar, the Unbowed and Thalia, Guardian of Thraben (if White)
Kamigawa: Neon Dynasty went a step further, making these more powerful overall, with two different modes to choose from when they die