Seanchan Blademaster

Firststrike
Swordsmanship—Whenever Seanchan
Blademaster creature becomes blocked by a
creature without swordsmanship, Seanchan
Blademaster gets +1/+1 until end of turn.
"There are only two ways to achieve the title
blademaster. Either six blademasters anonymously
agree that you are ready to achieve the title, or you
kill a blademaster."