When combined with cards that benefit your opponents a little too much or even more than yourself, Tataru Taru is an incredibly cheap way to even the playing field for only two mana
Put all three together, and you have a card most white decks can easily find a home for
Getting a free resurrection stapled to both an increase in lifegain and a redundant Heliod, Sun-Crowned is bonkers good
Academy Rector Academy Rector is slow but has one of the most interesting abilities in MTG
It's also bomb in Limited, by the way, so you should be very happy to see it in your MH3 Sealed pool or Draft pick
Nexus of Becoming There was a time when I was all too happy to control a Staff of Nin, and while those days are long gone a one-sided Howling Mine is still an appealing start to a card, even at six mana