Things really take off at four mana
White has a giant selection of cards that can accomplish boosting up power at instant speed, which allows you to pump Glen after your opponent's declared their flimsy small blockers (or none at all), but before the damage actually goes through
Its a massive creature that comes out on turns 1 to 3 on average, and it brings immediate and assured value in drawing you seven cards
We found another deal worth jumping on at The National
Thorntooth Witch has amazing Treefolk Tribal synergy in our deck since whenever we play a Treefolk spell we may have target creature get +3/-3 until end of turn, which can be used either for buffing our Treefolk that have great toughness, or for removal of enemy creatures
An often overlooked aspect of the Ghast is that it also has extort, an ability that lets you pay an extra white or black mana when you cast a spell to drain each opponent of one life, and you gain one life