This is a possible future of the swarm deck, based around 4x Cryptolith Rite. Have that, plus a couple of 'any colour mana'-generating cards, plus a land of each type (for 'fetch a basic land' cards), then make the rest green/white land (could have some dual green/red or white/red, as I think the main other colour [than green or white] will be red).

These cards are all collated in my folder, or are in my red/blue deck (other cards added later than 02/09/17 may be elsewhere)

When (if) there is time, make a draft of this and test in on Cockatrice before you buy 3 more Cryptolith Rites.


Note also: "cards for a flash "enters the battlefield" token deck:
Evangel of Heliod
Goldnight Redeemer
Ornitarch
Enlightened Ascetic
Lotus-Eye Mystics
Glimmerpoint Stag
Fiend Hunter
Silkweaver Elite
Champion of the Parish
Thalia's Lieutenant
Healer of the Pride
Timely Hordemate