I tried to go for a more witchy-type design for this one by adding another layer of sheet to evoke a broom. (Adding a broomstick would look just... wrong.)
Mega Mismagius, Magic Pokemon
Etymology: mischief + magic
WT: 10 lbs
Ability: Hocus-pocus (Multiplies power of special moves by 1.8x and adds a 30% confusion effect.)
1,2: Its ghostly incantations are said to bring either misfortune or good luck. If you have a migraine at night, it's likely because a Mismagius is wailing outside your house.
Gains a special attack boost, but has decreased attack.
Requires a Mismagiunite to Mega Evolve.
BURN THE WITCH
Mismagius (c) Nintendo.
Mega Mismagius (c) me.
EDIT: Upon popular demand it is now half Fairy-type.