Kicker
and/or
(You may pay an additional and/or as you cast this spell.)
If Rakavolver was kicked with its
kicker, it enters the battlefield with two +1/+1 counters on it and with "Whenever Rakavolver deals damage, you gain that much life."
If Rakavolver was kicked with its
kicker, it enters the battlefield with a +1/+1 counter on it and with
flying (This creature can't be blocked except by creatures with flying or reach.).