Kayla, Mischief Maker

First Strike
Whenever this card deals damage to a creature,
put 1 mark on that creature. If a creature dies
with marks equal to it's toughness, you may
shuffle a copy of it into your library. If you do,
your opponent shuffles it into their library.
When this card gains a charge, remove it to give
this card +0/+1 until the end of turn.
You think this is just paint? Well, thanks to a friend in
a high place, it's got some nice properties to it. Shhh,
don't tell anyone.