mtg card sizes Playing Dimensions: The Complete Guide The Gathering Mayday Games Card Sleeve Sizing

Every booster is a portal to the Spider-Verse, featuring beloved characters, locations, and epic moments from Spider-Mans adventures

Since it's a mana cheap instant, you can do this in response to targeted or sweeping removal to get cards, as a sacrifice or it can send something to your graveyard about to get exiled by Swords to Plowshares, or to get value out of a chump blocker about to die anyway

I never thought of that

Its just a combo engine

Regardless of how these specific ones were made they are still fake cards

For one-off edge cases, its usually faster to use a generic token, a dry-erase token, or a spare card in a sleeve