Its limited to once per turn, so you can point your removal spell at your opponents creatures to make it work on their turns
It gains you life every time you draw cards, and makes your opponents lose life whenever they do the same
As well get to shortly, Palantir of Orthanc actually looks rather powerful, however, its worth addressing something first
It also keeps your opponent guessing as to your plans, or allows you to shift (pun intended) your plans on the fly to deal with your opponents current position
Well, for starters, it doesnt restrict you to only green creatures, unlike Green Suns Zenith or Natural Order
While the four mana activation cost is a little steep, if you're playing the long game, the Grand Master was a fantastic mana sink, giving you infinite copies of all of your spells