You may cast an instant or sorcery spell from your sideboard. If you cast a modal spell this way, you may choose an additional mode. (A modal spell lets you choose one or more modes from a bulleted list.)
Playtest cards aren’t legal for play in any tournament format other than Mystery Booster Limited formats. On the other hand, we expect they will spice up a wide variety of non-tournament games (as long as everyone’s on the same page about using them!).
08-11-2024
wotc
You pay all costs for the instant or sorcery spell you cast this way.
08-11-2024
wotc
As Your Wish Is My Command resolves, you find an instant or sorcery spell from among cards in your sideboard and choose whether or not to cast it. If you do, you cast it as part of the resolution of Your Wish Is My Command. You can’t wait to cast it later in the turn. Timing restrictions based on the card’s type are ignored.
08-11-2024
wotc
Playtest cards use a modified version of game symbols, such as {T} and {W}. These modified symbols should be treated as the standard symbols during play.
08-11-2024
wotc
The additional mode you choose can’t be the same as one you’re already choosing with that spell unless that spell allows you to choose the same mode more than once.
08-11-2024
wotc
For many playtest cards, you’ll need to make a generous assumption that basic game rules would be updated to allow them to work. The Mystery Booster 2 Playtest Card Notes section (reproduced here in individual Gatherer rulings) provides guidance for fitting these cards into the existing rules structure.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.