Sinuous Drifter

Flying, ward {2}, vigilance
At the beginning of your upkeep, scry 3, then
you may reveal the top card of your libary. If a
creature card with higher power than any
creature on the battlefield is revealed, you may draw that card. Until the end of turn it costs 2 less to cast.
When you cast Sinuous Drifter, scry 5.