Enchanted creature is a planeswalker in addition to its other types. Its toughness becomes its loyalty. (You change its toughness to activate loyalty abilities. Damage lowers toughness. Toughness doesn't heal at end of turn.) It can't block and gains the following abilities —
+1: Add RR.
−1: Exile the top card of your library. You may play it this turn.
−X: This planeswalker deals X damage to any target.
The enchanted creature’s toughness doesn’t turn into loyalty counters. Its toughness is its loyalty, and that value is modified appropriately as the enchanted creature is dealt damage.
2024-11-08
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.
2024-11-08
wotc
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!).
2024-11-08
wotc
Other effects can still modify enchanted creature’s power and/or toughness as they would any other creature, and their durations are not affected. For example, Invigorate can give the creature +4/+4 until end of turn. While its toughness is boosted, that toughness can be reduced as a cost to activate its loyalty abilities. However, once the turn ends and Invigorate wears off, if the creature’s toughness is 0 or less, it would be put into a graveyard as a state-based action.
2024-11-08
wotc
Loyalty costs on enchanted creature treat putting or removing loyalty counters on/from it to changing its toughness instead. A [+1] cost on a loyalty ability, for example, effectively has a cost of “increase enchanted creature’s toughness by 1,” though it still counts as a loyalty ability. Similarly, a [−X] cost becomes “Reduce enchanted creature’s toughness by X.” You can’t pay a cost that would reduce enchanted creature’s toughness to less than 0.
2024-11-08
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.
Format Legality
Standard
Not Legal
Future
Not Legal
Historic
Not Legal
Timeless
Not Legal
Gladiator
Not Legal
Pioneer
Not Legal
Modern
Not Legal
Legacy
Not Legal
Pauper
Not Legal
Vintage
Not Legal
Penny
Not Legal
Commander
Not Legal
Oathbreaker
Not Legal
Standardbrawl
Not Legal
Brawl
Not Legal
Alchemy
Not Legal
Paupercommander
Not Legal
Duel
Not Legal
Oldschool
Not Legal
Premodern
Not Legal
Predh
Not Legal
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