This elegant loop turns a single instance of life gain into a self-sustaining engine of growth and reinforcement. It all kicks off when Heliod, Sun-Crowned reacts to the initial life gain by placing a +1/+1 counter onto Scurry Oak. That injection of power triggers Scurry Oak's ability to manufacture a 1/1 green Squirrel token, which immediately alerts Soul Warden to the new arrival. Soul Warden's presence ensures that every incoming Squirrel rewards you with a fresh burst of life, feeding right back into Heliod, Sun-Crowned to trigger the whole cycle anew.