Serra's Blessing & Phyrexian Colossus
 
Creature Spells (8):
4 Serra Avatar
4 Angel of Mercy
 
Other Spells (24):
4 Life Burst
4 Soothing Balm
4 Congregate
4 Moonlit Wake
4 Spirit Link
4 Serra's Blessing
 
Artifacts (8):
4 Phyrexian Colossus
2 Braidwood Cup
2 Planar Portal
 
Lands (20):
20 Plains
 
there are 2 ways to win with this deck:
1) Attack with Phyrexian Colossus while Serra's Blessing is in play (so you do not need to pay 8 life to untap Phyrexian Colossus) for a direct 8 point damage(even if any creature is blocking, they would not survive the 8 point damage).
2) Gain a lot of life with life burst and soothing balm, play serra avatar and serra's blessing for a very powerful creature.
 
use the planar portal to get your Colossus, Avatar & Blessing out while you hold on with the angels.
 
As for the sideboard, put whatever you think is good, but i would suggest the Northern & Southern paladins or the Order of the Sacred Torch.
 
Thanks for reading this article and hope you enjoy it!