Soul Gate Primodial

Flying, trample
Whenever Soul Gate Primodial enters the battlefield, sacrifice it unless you pay {w}. Exile
all other creatures under it. Put a +1/+1 counter
on it for each creature exiled this way.
Whenever Soul Gate Primodial dies, return all
the creatures to their owners' graveyards. If six
or more creatures were returned this way, each
player loses that much life.