Servitor Sunseeker

Oscillate 3 (At the beginning of your upkeep, put a
+1/+1 counter on this creature. Then, if it has three
or more +1/+1 counters on it, remove all +1/+1
counters from it.)
Whenever one or more counters are removed
from Servitor Sunseeker, you gain that much
life.
The machines of the Lost South work tirelessly to
build a paradise for long-dead masters.