Oia, Outlinker Separatist

Flash, Ward - Sacrifice two artifacts
Penetrate Network—{x}{t}: Target artifact gets X Subvert counters (This artifact does not untap, and
during its controller's upkeep you gain X Life).
Weapons Expert—{3}: Exile the top three cards of
your library, you may play them during your next
turn. Until the end of this turn, add their total
mana cost to Oia's power. Use this ability no
more than once per turn.