Ghalerra, The Fallen

Flying, First Strike, Lifelink
Whenever Ghalerra, The Fallen enters the battlefield, you may sacrifice any number of
phoenix creatures, if you do, choose that many creatures, their owners sacrifice those creatures.
At the beginning of your end step, return all
phoenix creatures that were put into your
graveyard with Ghalerra, The Fallen this turn.
Perfection.. -Harold