Inisak, The One Given Life

Natural (Land creatures, saproilings, fungus,
treefolk and dryads count as Natural cards)
( {t}, Add {g} )
{t}, Add {g}{g}. Spend this mana only to cast
Natural spells. If you spend this mana to cast a
creature spell, put a +1/+1 counter on that
creature.
"Live, so that others might thrive." - The Lifegiver