At level 2, youre able to give an attacking creature +1/+0, while at the third level, you can draw a card if you control a creature with a power of four or more at the end of your turn
Its this ability that makes Sunforger such a force to be reckoned with
In limited, drafting plenty of commons like Focused Funambulist and Bamboozling Beeble will help you scry to the cards you need and keep you swinging in with an army of fantastic flying fellows
Obviously exiling instead of sacrificing is a big deal, but Sothera requires everyone to have creatures in play for it to stick around
Voice of VictoryVoice of Victory is by far the best mobilize card: It's cheap to cast, fairly resilient, it gives you the counterspell-pass for your turns, and it also prepares you coffee (it doesn't, but it may as well do)
For a mildly expensive six mana, you get a beefy six loyalty Planeswalker with three great abilities and a very strong static ability