Here's my start. I had an amazing one a while ago, but I can't find it.
This is just the current card pool I'm drawing from.
4 {deserted temple} Untaps gaea's cradle
4 {gaea's cradle} a bajillion mana just seems good
4 {swarmyard} I don't really care if I lose 1 squirrel, but whatevs
4 {earthcraft} Almost infinite mana just seems good. Also pairs up nicely with {squirrel's nest}
4 {squirrel mob} Really big dude
4 {acorn harvest} Token Generator
4 {coat of arms} Really big dudes
4 {squirrel nest} see earth craft
4 {chatter of the squirrel} token generator
4 {epic struggle} Alternate win con
4 {symbiotic deployment} draws my whole deck
4 {parallel evolution} populate every token with flashback? that's amazing
4 {parallel lives} cheap doubling season
4 {doubling season} double tokens. works amazing with parallel evolution
4 {rhys the redeemed} constantly recurring parallel evolution
4 {saproling symbiosis} lots of dudes. Also, squirrels need trees! ;)
4 {magus of the candelabra} untags cradle
4 {fists of ironwood}
4 {mycoloth}
4 {sproutswarm}
Main Deck
Land
4 {gaea's cradle}
4 {deserted temple}
4 {swarmyard}
8 {forest}
20 Lands
Token Generators
4 {acorn harvest}
4 {chatter of the squirrel}
4 {squirrel nest}
4 {saproling symbiosis}
4 {sproutswarm}
20 Generators
Token Reproducers
4 {parallel lives}
4 {doubling season}
4 {parallel evolution}
12 Reproducers
Utility
4 {symbiotic deployment}
4 {earthcraft}
8 Utility
60 Total
So. Much. Win. Death by squirrels.
Maybe remove two {Rhys The redeemed} for two {Crop Rotation} so you can get your cradles really consistently
-4 {Coat of Arms} hate that thing...
So much awesome flavor ! Lol +1
Ok so {Epic Struggle}
So that's what that is...
Mana doesn't seem to be an issue, so maybe {akroma's memorial}?