Envoy of Gaea

Conjure {2}(When this permanent enters play, you
may pay {2} to exile target creature card in a
graveyard with a converted mana cost 2 to put 2
+1/+1 counters on target creature or gain 2 life.)
Land creatures you control have "{t}: Add {1}{g}."
If Envoy of Gaea would enter play, you may pay
{2}{g}{g} instead. If you do, put it into play. If you
don't, put it into its owner's graveyard.