First of all: Interesting idea here. It gains evasion, but only at the cost of giving the opponents stuff evasion. Interesting potential for horrible interactions with other stuff that hurts flyers, too.

On the downside? Costs a heck of a lot, and a heck of a lot to repeatedly use it. Especially at rare, could probably stand to be a bit meatier.

I do like the idea, although it'll be fiddly to keep track of.

Yeah, I quite like, although the evasion could be stronger or lower rarity: compare to something like Spin Engine which never seemed as strong as it looked, even though it just said "R: target creature can't block".

OTOH, it's a hilarious combo with hurricane effects :)

I don't know how staying power will work in general, but in this case "until the end of its controller's next turn" might be simpler to understand and easier to remember.

BTW, if you don't know, "tosser" is a british slang insult, a bit rude but not racist or sexist, etc. I don't think most people would mind seeing it on a website, but I don't know whether or not wizards would mind printing it.

Well, they already printed Frogtosser Banneret.

Although since 'tosser' means 'one who masturbates' the concatenation with frog is unintentionally hilarious.

(It does also mean 'throw' so yeah, you're probably fine)

Edit: Ugh, yes. That ability in a multiplayer game. Player 3 is declaring combat? I'll give play 2's creature flying. It'll wear off at the end of player 4's turn. Head explodey.

Hmm... I also like this card, but, not including interactions with Hurricane, I'd probably rather play Stone Giant... which is telling. I agree with Vitenka... this could be meatier. I think, when costing rares, R&D likes to pretend their synergistic abilities don't exist. So, yeah, I think they'd cost this like they'd cost a 3/2 Spin Engine, and just pretend the 'combos with anti-flying cards' isn't there.