So I found this out by accident when playing my junk token/lifegain deck.
{Angelic Accord} and {Vault of the Archangel}
This is fantastic once you have an angel out (I like to play a {thragtusk}) you can then just activate the vault in response to an attack or defend from the angel and spawn another :) (meanwhile killing off whatever it blocked or blocked it)
So simple and repeatable each turn, keeping the pressure on if you happen to be only top decking land :) (not to mention life total)