Mega Aerodactyl

Mega Evolve - {1}{w}{r}. You may only Mega
Evolve Aerodactyl if an opponent lost life this
turn.
Flying, Trample
When Aerodactyl Mega Evolves, untap creatures
you control and they get +1/+1 until end of turn,
there is an additional combat phase this turn following the second main phase.