Aatrox, the Darkin Blade

First Strike, Lifelink
Aatrox gains +2/+0 for each time he has
attacked this turn. If he is attacking for the third
time, he gains flying.
{b/r}{b/r}: Untap Aatrox. There is an additional
combat phase after this one. Only Aatrox may
attack during this combat phase. Use this ability
no more than twice each turn.