Creature - Shapeshifter 2/1, 1{W/B} (2) Whenever you play a spell that's both white and black, Nightsky Mimic becomes 4/4 and gains flying until end of turn. A mimic need only touch a being to learn its shape, but touching usually leads to mauling and messily eating.
Illus. Franz Vohwinkel
8/1/2008: The ability triggers whenever you play a spell that's both of its listed colors. It doesn't matter whether that spell also happens to be any other colors.
8/1/2008: The effect from the ability overwrites most other effects that change or set its power and toughness. But certain other effects can still apply to it afterward. They are: -- Effects that happen after the Mimic's ability resolves that change its power or toughness (like Giant Growth) or set its power and toughness to certain values (like Lignify). -- Counters that change the Mimic's power and toughness, such as +1/+1 or -1/-1 counters, regardless of when they were put on that creature. -- Static abilities that change the Mimic's power and toughness (such as those from Glorious Anthem), regardless of when they first took effect. -- Effects that switch the Mimic's power and toughness, regardless of when they first took effect.
8/1/2008: If you play a spell that's the two appropriate colors for the second time in a turn, the ability triggers again. The Mimic will once again become the power and toughness stated in its ability, which could overwrite power- and toughness-altering effects that have been applied to it in the meantime.
8/1/2008: Any other abilities the Mimic may have gained are not affected.
Eventide
(Common)