Jump-start was made for the Izzet guild, appearing primarily on red and/or blue spells, though it has since popped up on a few cards of other color identities
Among them, the card stands out Edgar Markov, whose treatment includes serialized versions of 500 enumerated copies of the card in a special foil style known as rainbow foil
Obstruction / Retained Obstruction Occasionally, when the ink is transferred from the printing plate to the blanket, a piece of debris can get stuck to either the blanket or the sheet of cards being printed, and block ink from reaching the surface of the card like on the back of this Steenee from Sun & Moon
The Fire half splits two damage among two targets, so it can be a 2-for-1 with one-toughness things
2 Masterpiece Vault Fancy Artifacts Ripe For The Taking Certainly a card made more for Brawl than Alchemy, Masterpiece Vault is a three-mana artifact that gives you a fancy version of a very strong piece of equipment when it is put into the graveyard, though two are certainly worse than the others