Citation :
dans "celles qui sont seulement cosmetiques" j'ai trouvé dans un booster mirage une fronde infaillible infligeant des blessures à une créature sans le vol...
Both version of "unerring Sling" exist in french mirage ( Avec le vol and sans le vol)
There was probably a 2nd printrun, where they corrected the error.
More French errors:
Garruks Packleader M11 - Draws a card even for itself, is missing "Other" creature
Kamahl's Summons ONS - You can reveal any card, not just only creature cards
Noble Purpose 8th ( Mercadian Masques version is correct) "Whenever a creature you control deals ( correct) or is dealt damage (wrong) ..."
Duplicant Mirrodin - Textbox error "...when Shapeshifter(changeforme) comes ito play..." (wrong) instead of "... when duplicant(replicant) comes into play.."(correct)
Boil 8th - List a word twice in flavor text "seront seront"
Katabatic Winds VI - List the wrong Artist "John Matson", should be "Gary Gianni"
Wind Shear VI - List the wrong Artist "Gary Gianni", should be "John Matson"
Imaginary Pet 9th - returns to your hand ,when you have exactly one card in hand ( wrong) instead of "one ore more cards" ( correct)
Flash Conscription RAV - Says: When "enchanted" Creature deals damage
Anaconda French Portal 1 Alternate Text Version The reminder for swampwalk mentions Forest instead of Swamp
French Frost Titan M11 "...contrecarrez ce sort ou qu'il cette capacité..."
French MM Jhovall Queen: All non foil printings of this card have a blue bullseye in the picture.
5th edition French ('97) Glasses of Urza - cost 0 instead of 1 ( correct version exists)
French ON Undead Gladiator: Says you can play the ability only during your turn, not just your upkeep
French Foil only TO coral net is missing the last word of text - "Hand"
French 8th Rukh Egg: Doesn't say the Rukh has flying.
French IA Goblin Ski Patrol: Missing the copyright line completely
Revised BB ('94) French Aladin's ring - printed with Jandor's ring picture
There are many more minor mistakes with wrong artist and typos etc... you can read about it here:
http://squt.tripod.com/error10.html