All Saprolings get +1/+1.
Morph {3}{G}{G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
When Thelonite Hermit is turned face up, create four 1/1 green Saproling creature tokens.
Because damage remains marked on a creature until the damage is removed as the turn ends, nonlethal damage dealt to a Saproling may become lethal if Thelonite Hermit leaves the battlefield during that turn.