Sly, Great Nailsage

Whenever you attack, you may pay {2}. When
you do, put two +1/+0 counters and a Nail Art
counter on target attacking creature.

(Nail Arts include Cyclone Slash, Dash Slash,
or Great Slash. Cyclone Slash: This creature
has myriad. Dash Slash: This creature has first
strike. Great Slash: This creature has double
strike. )