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.