Kicker
and/or
(You may pay an additional
and/or
as you cast this spell.)
If Necravolver was kicked with its
kicker, it enters the battlefield with two +1/+1 counters on it and with trample.
If Necravolver was kicked with its
kicker, it enters the battlefield with a +1/+1 counter on it and with "Whenever Necravolver deals damage, you gain that much life."