This deck function similarly to Saffi Eriksdotter combo decks, with the added benefit of having a built in way of holding off the hate in the form of life gain. It is less likely to lose to Voltron or combined hate with 31 creatures and some stall in the form of Maze of Ith, Constant Mists, Spikeweaver and Parallax Wave.
Getting There:
Stalling is pretty important with this deck. It uses Parallax Wave and Cold Storage combined with Eternal Witness disrupt your opponent's best creatures or save your combo pieces from dying. Constant Mists and Maze of Ith help keep the aggro and Voltron decks at bay.
Other Win Cons:
An unanswered Luminarch Ascension and Beastmaster Ascension give a few ways to win without resorting to combo, or if your pieces get stripped out of your library and graveyard.
1 Trostani, Selesnya's Voice
Lands (35)
1 Command Tower
1 Savannah
1 Temple Garden
1 Wooded Bastion
1 Sungrass Prairie
1 Sunpetal Grove
1 Grasslands
1 Windswept Heath
1 Marshflats
1 Krosan Verge
1 Dryad Arbor
1 Mosswort Bridge
1 Gaea's Cradle
1 Deserted Temple
1 Secluded Steppe
1 Tranquil Thicket
1 Yavimaya Hollow
1 Maze of Ith
8 Snow-Covered Plains
9 Snow-Covered Forest
Creatures (30)
1 Mother of Runes
1 Serra Ascendant
2 Saffi Eriksdotter
2 Sakura-Tribe Elder
2 Gaddock Teeg
2 Wall of Omens
3 Aven Mindcensor
3 Yavimaya Elder
3 Loyal Retainers
3 Wood Elves
3 Yavimaya Dryad
3 Somberwald Sage
3 Mirror Entity
3 Dauntless Escort
3 Caller of the Claw
3 Fiend Hunter
3 Eternal Witness
4 Solemn Simulacrum
4 Odric, Master Tactician
4 Spikeweaver
4 Academy Rector
5 Acidic Slime
5 Reveillark
5 Karmic Guide
6 Vigor
6 Armada Wurm
6 Sun Titan
6 Rampaging Baloths
7 Garruk's Horde
7 Sylvan Primordial
1 Mirri's Guile
1 Concordant Crossroads
2 Luminarch Ascension
2 Survival of the Fittest
3 Beastmaster Ascension
4 Greater Good
4 Parallax Wave
4 Pattern of Rebirth
5 Gutter Grime
5 Mirari's Wake
6 Wild Pair
Artifacts (10)
1 Expedition Map
1 Sensei's Divining Top
2 Altar of Dementia
3 Ashnod's Altar
3 Phyrexian Altar
3 Mimic Vat
4 Well of Lost Dreams
4 Birthing Pod
4 Cold Storage
4 Phyrexian Processor
Sorceries (9)
2 Rampant Growth
2 Nature's Lore
2 Three Visits
2 Into the North
2 Silvan Scrying
3 Kodama's Reach
3 Cultivate
7 Tooth and Nail
1 Crop Rotation
1 Enlightened Tutor
1 Worldly
1 Constant Mists
Loops:
Combo pieces include Loyal Retainer + Saffi Eriksdotter, Reveillark + Karmic Guide, Sun Titan + Fiend Hunter.
Win Conditions:
The ETB counts get infinitely high, which means you win with either infinite life off Trostani's ability, infinite mill with Altar of Dementia, infinite bears with Caller of the Claw, infinite ooze's off Gutter Grime or infinite beasts from Rampaging Baloths if you can involve Dryad Arbor in your Karmic Guide + Reveillark loop.
Getting There:
Stalling is pretty important with this deck. It uses Parallax Wave and Cold Storage combined with Eternal Witness disrupt your opponent's best creatures or save your combo pieces from dying. Constant Mists and Maze of Ith help keep the aggro and Voltron decks at bay.
Other Win Cons:
An unanswered Luminarch Ascension and Beastmaster Ascension give a few ways to win without resorting to combo, or if your pieces get stripped out of your library and graveyard.
Finding the Combos:
Sydri's Magical Castle WUB
Chainer, Dementia Master: "Bring out your dead!" BBB
Riku Because Copying Decimate URG
Xira Arien, Jund StaxBRG
The Sylvan-Primordial-PlasmBUG
Trostani ComboGW
Vizkopa Guildmage - Peasant VariantBW