4 Mistbind Clique
4 Pestermite
4 Scion of Oona
2 Sower of Temptation
4 Spellstutter Sprite
4 Cryptic Command
4 Nameless Inversion
2 Vendillion Clique
4 Bitterblossom
4 Thoughtseize
4 Secluded Glen
8 Island
4 Swamp
4 Mutavault
4 Sunken Ruins

Questions:
Thoughtseize or a counterspell (broken dreams or familiar's ruse) ?
What goes in the side?

I like this deck, and i think thoughseize is better than a counterspell (maindeck),but the best is to test...

better build I think, thoughtseize>broken ambitions

in side, 2 more sower, 4 peppersmoke (mirror, elves, kithin ), more vendilion against control deck, shriekmaw or the bounce dor 1u with clash, maybe consign to dreams

I think thats the main problem of faeris, just 1 good build and a very middle side

Here's a starting idea:
4 Peppersmoke
2 Sower of Temptation
4 Disperse
4 Broken Ambitions
1 Vendillion Clique

Disperse being mainly against squall line, but can even be used to bounce mistbind clique if needed.
Broken Ambitions and Vendillion are the most questionable, but it seems like you could use counterspells often.

Feel free to talk in French, this is your forum.

I prefer to speak english that's the only training I have to progress!

I hope you understand all what I write.

and lol fish squall line is a time spiral card, the faerie's eater in block is CLOUDTRESHER!

By Squall Line I meant Raking Canopy. Obviously you can't bounce instants.

Hopefully Thoughtseize + Cryptic + sb Broken Ambitions is good enough against cloudthreshers.

Your writing is perfectly understandable. Unlike mine when I try to write french.

en vérité Ryan tu parles français comme une vache espagnole (selon l'expression consacrée)