{ruric-thar, the unbowed} + {nearheath pilgrim} + {rhox faithmender}.
It also is only in 3 colors, not 12 or something (it's in naya).
Edit: this is so not a combo. No idea what I was thinking, but you can cast creatures and gain life, while still having ruric thar out.
If out of standard, throw in {earthcraft} and {squirrel nest} for infinite life gain.
You can do an infinite life combo if you infinite mana combo with {Tree of Redemption} and any equipment that gives him extra toughness (eg. I use {Mask of Avacyn} as it also has hexproof) it will also work with +1/+1 counters.
The trick is to get him to untap so you can repeat it. I use {Galvanic Alchemist} soulbond ability to do it.
Each swap will add +2 to the total. You also end up with a really big tree.
*infinite in this case is any number you choose. Not a loop creating situation :)
Lol well there is always {Trostani, Selesnya's Voice} and three {Fiend Hunter}'s for a infinite life gain. :)
Very nice :)