Vigilance

Lily Bowen, Raging Grandma enters with two +1/+1 counters on it.

At the beginning of your upkeep, double the number of +1/+1 counters on Lily Bowen if its power is 16 or less. Otherwise, remove all but one +1/+1 counter from it, then you gain 1 life for each +1/+1 counter removed this way.