Nico, Flame & Blade Prodigy

Flash
Double Strike
Nico can only be blocked by creatures with flash or haste
Whenever Nico deals combat damage, place a Scroll Counter on up to one target legendary creature that doesn't already have one. For as long
as it has a Scroll Counter, it gains "{2}{u}, {t}, Remove a Scroll Counter from this creature: Counter target noncreature spell."