The loser of that subgame loses half of their life once the main game resumes
There are so many ways to deal 1 damage, which allows you to grow Ob Nixilis and get many more cards to play with
You may even be in a hurry before a tournament and not sure which cards you want to switch out at the last minute
Not only is this unit a ruler by name, but a ruler of any deck looking to pile up victories
And while favorites like Demonic Tutor, Arcane Denial or Arcane Signet might be obvious picks, they didnt luck out on this random roll
They might be small, but they can still block, attack, use activated abilities, their static abilities will still be around the Cursed Roles arent that hard to remove either -- so you get the picture