Pietro Maximoff, Quicksilver

First strike, flash, vigilance, haste
Echo {u/r}{u/r} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
Far too long have my sister and I suffered the indignities dealt us by homo sapiens... therefore, we have decided that our only cause is that of our own race... the race of homo superior!