Scyther

You may cast Scyther from your graveyard if you sacrifice two Berry in addition to paying its mana cost to cast it.
First strike, flying.
Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.)
Frenzy 2 (Whenever this creature attacks and isn't blocked, it gets +2/+0 until end of turn.)
{p/c}: Scyther gets +1/+0 until end of turn.