I suggest Worldspine Wurm because then, you have an easy EASY way to end the game after you get a good mana flow...

Thank you for the suggestion but I dont think it quite fits into my deck anywhere

suit yourself

Worldspine Wurm would definitely be a great way to finish the game. I'd take out a rootborn defences and an Experiment One and put two in.

Hello, i recently did another version of Selesnya Aura Std Deck.

Use few creatures with hexproof, many auras with evasion and lifelink.Check it on Aura GW Standard vII

I would say your running a wee shy on the amount of auras you could run. Gift of Orzhova is another pretty good one. I also would suggest removing Rootborn Defenses in favor of Ready / Willing , same card, except without populate and it lets you untap and potentially block damage. I would also suggest increasing the numbers of that, since Supreme Verdict tend to be a bit of a blowout for most hexproof decks. As to what I would remove from the sideboard, -4 Mistcutter Hydra , -1 Rootborn Defenses , +3/4 Ready / Willing +2/1 Skylasher . The reasoning behind removing the Mistcutter Hydra and increasing Skylasher is that aside from mono blue matchups, you can use Skylasher to "counter" any Devour Flesh tactics. I suppose Selesnya Charm does this as well. Anyways, just some thoughts. +1 for hexproof.

(Also, Ajani, Caller of the Pride makes for an amazing finisher, might add one or two of him)