Quote from AbsolutionisBackflip: Try "Whenever a player plays an instant or sorcery, that player puts a 2/2 colorless creature into play."
Bridge of Air - Wonderful idea
Horyzon - Mispelled "Horizon" and yet, all still works fine. Triggers late enough to not be of severe consequence. Note that this would be an auto-include in all control-based decks.
Ring of Wisdom - I'm actually surprised a card like this had not yet been created. A very obvious card missing from the game.
Rain of Fire - Akin to Flowstone Flood + Raze. Perhaps it should cost more, perhaps :3mana::symr: seeing as how it's rather easy to recur.
Quote from RickCorganBackflip - Pretty weird (especially the 'putted' :p), but I really like it.
Bridge of Air - Why would anyone play it by suspending it? I assume if you play it from the RFG zone, you can't play another land the same turn, thus making the suspend option very unappealing.
Horyzon - Very nice.
Ring of Wisdom - Pretty nice. Could cost less; say, :4mana:.
Rain of Tears - I'm always scared of too many 3-mana LD on an environment. I'd cost this at 3R. Even so, buyback LD is always pretty scary. (name taken, BTW)
EDIT: slightly Sarnath'd.
Quote from Howler13The "norm" cycling cost is 2, unless the card has a cycling effect, so there's no reason Ring of Wisdom should make it cost more than that. And there's already a card named Rain of Tears, just FYI.