Krosan Cloudscraper

At the beginning of your upkeep, add {g} to
your mana pool for each beast you control.
At the beginning of your upkeep, sacrifice
Krosan Cloudscraper unless you pay {g}{g}.
{g}{g}{g}: Regenerate Krosan Cloudscraper.
Krosan Cloudscraper has trample as long as
your devotion to green is 5 or more.