kicker 1b and/or r (you may pay an additional 1b and/or r as you cast this spell.)

if degavolver was kicked with its 1b kicker, it enters the battlefield with two +1/+1 counters on it and with "pay 3 life: regenerate degavolver."

if degavolver was kicked with its r kicker, it enters the battlefield with a +1/+1 counter on it and with first strike.