Traveling Herbalist

Whenever you draw a land from your library,
gain X plus one life where X is the number of
time counters on Traveling Herbalist. Put an age counter on this permanent.
As long as Traveling herbalist has twenty or
more time counters. It has indestructible.
{1}{u}{b/g}, {t}: Reveal the top card of your library.
If it is a land, draw it. Otherwise mill a card.