I'm also trying to build a decent Abzan deck, it looks pretty similar but has some differences. I mainly play Bo1-events though so I adapted it to beat the red/white/blue aggro decks there. I tried this with the explore and Wildgrowth Walker/lifegain-package before, but it consistently under performed for me because the T2 Walkers just get removed most of the time. Then before I get them back with Findbroker, or draw a 2nd copy, I'm way below 10 life and often die next turn.
So what I tried instead is use 4x Moment of Craving and 4x Knight of Autumn. This seems to perform pretty well, though Craving is of course dead vs. most control. Knight of Autumn is really awesome though, so versatile in any match up. I would never go back to less than 4 right now in Abzan. 4 life is pretty meaningful, also being able to remove any enchantment (like Curious Obsession) or artifact, or just simply put down a body (to stop Vine Mare), is awesome to me.
Here's my deck in case you want to take a peek (it's by no means a done deal though):
4 Merfolk Branchwalker (XLN) 197
3 Find // Finality (GRN) 225
4 Jadelight Ranger (RIX) 136
4 Knight of Autumn (GRN) 183
3 Ravenous Chupacabra (RIX) 82
3 Vraska's Contempt (XLN) 129
2 Golgari Findbroker (GRN) 175
2 Vivien Reid (M19) 208
3 Isolated Chapel (DAR) 241
2 Sunpetal Grove (XLN) 257
4 Temple Garden (GRN) 258
4 Overgrown Tomb (GRN) 253
4 Woodland Cemetery (DAR) 248
2 Forest (RIX) 196
2 Swamp (RIX) 194
3 Assassin's Trophy (GRN) 152
2 Carnage Tyrant (XLN) 179
2 The Eldest Reborn (DAR) 90
2 Memorial to Folly (DAR) 242
4 Moment of Craving (RIX) 79
1 Golgari Guildgate (GRN) 248
If I would build a sideboard (I will eventually), I would think of cards like:
- Remorseful Cleric
- Tocatli Honor Guard
- Carnage Tyrant as a 2-off if not in main
- Maybe Shield Mare