I would highly suggest one or all of the following:

• Battle Mastery

• Silverblade Paladin

• Ajani, Caller of the Pride

Being able to grant Sigarda double-strike is one of the strongest and quickest ways to get a win.

I've recently had the pleasure of having True Conviction out for a few turns and having it buzz saw through people, and it makes draw tricks like Hunter's Insight and Prowess all the more savage. I like the cut of Battle Mastery's jib and Caller of the Pride, I'll keep an eye out for a couple slots.

Silverblade Paladin is a bit iffy in my meta. Creatures like that have a way of getting butchered.

To each their own. You could always sandbag him until you want to surprise finish someone off. Or if you end up playing Chord of Calling you can tutor him straight onto the field.

With the Release of the last core set, Origins, here are some new toys for Sigarda, Host of Herons:

Starfield of Nyx: Helps you out in multi-player games, helping you return enchantments back to the field.

Helm of the Gods: helps you pump up sigarda for cheap.

Herald of the Pantheon: another amazing enchantment helper!

Helm of the Gods has the same problem Ethereal Armor and Eidolon of Countless Battles had, which is that it doesn't offer any utility besides beefing someone up, the beefing is board state dependent, and even if it's a really good board state it's not quite enough to be a knockout punch.

Starfield of Nyx would be great if not for the Opalescence effect. If it goes active all my little utility enchantments are liable to get Wrathed or Elesh Norn'd or Massacre Wurm'd, and there's only one enchantment in the deck that'd be a threatening creature. Also, these effects hit enchantment creatures, so while it'd beef up a couple critters it'd nerf both Gods whose indestructibility makes them so appealing to swing with.

Herald of the Pantheon might work out. The deck tends to machine gun out little enchantments when Enchantresses are out and that off could end up paying big dividends. Nomad Mythmaker has been kinda dragging so I'll sub 'em and see how it flies.

Cool. Glad I could help you out. :)

If your worried about stuff like Aura Shards I see you already have Sterling Grove, why not Privileged Position Karmic Justice or Greater Auramancy? If your worried about disk and enchantment wraths play Avacyn, Angel of Hope

I see you have Avacyn

Privileged Position costs way too much at 5 and was always a dead draw when I ran it. The problem with cards like Privileged Position, Karmic Justice, Greater Auramancy and so on is that if it's a persistent trigger like Aura Shards then it will itself be destroyed and only buy you a 1 card buffer, and if it's spot removal it'd be better to just have another card worth destroying.

Greater Auramancy isn't of much use because the deck wants to put a lot of auras on one creature, and you can't do that if that creature has shroud.

I can kinda dig Karmic Justice. It's cheap, it'll at least trade for itself most of the time, and it's a rattlesnake for cards like Bane of Progress.

Fair enough

Haha ya Bane of Progress doesn't seem very good in that situation