The Sacred Pine

{1},{t}: Add {g}{g}
{2},{t}: Gain 3 life.
{3},{t}: Sacrifice a creature: Search your library
for a creature card with mana value equal to 1
plus the sacrificed creature's mana value, put
that card onto the battlefield, then shuffle.
Activate only as a sorcery.
{4},{t}: Create a Legendary artifact named
Jewelled Painite. It has "Sacrifice this artifact,
add {g}{g}{g}{g}{g}{g}{g}{g}."