In Dendemille town, in a House, up and right from the Pokemon Center (next to some stairs), is the Move Deleter and the Move Reminder. The Move Deleter is to the left side of the house after entering, and the reminder is in the right side of the house.
Just like the previous Pokemon games, the reminder will not remind your Pokemon for free, you need a Heart Scale, carried by Luvdiscs or found in Rock Smash rocks.
Either catch them and take the item from them (at a cost of 200 per Pokeball), or use item-stealing moves in battle such as Thief and Covet, and take them off your Pokemon after battle. Luvdiscs are found in bodies of water, while fishing with an old rod.
If you equip a Lucky Egg to a Pokemon, the gained experience from EXP Share will be affected by the egg.
For an example, if a normally the participating get 100 exp and the non-participating Pokemon will get nothing, without EXP share...
In Gen 6, with EXP Share on, instead of splitting[1] the exp amongst everyone, the participating Pokemon would get 100 exp (with no Lucky Egg, the yield 100% of the total exp gained for each participating), while another non-participating Pokemon (with no Lucky Egg, the yield 50% of the total exp gained for each non-participating Pokemon).
Giving the participating Pokemon a Lucky Egg (adds 50% exp), will yield them 150% or 150 exp [100 + (100*.5)], and giving the non-participating a Lucky Egg they will get 75%, or 75 exp [50 + (50*.5)].
A = Participant
B = Non-participant
C = Non-participant
+ = Lucky Egg
No EXP share, no Lucky Eggs:
A = 100%
B = 0%
C = 0%
With EXP Share, no Lucky Eggs:
A = 100%
B = 50%
C = 50%
With EXP Share, two Lucky Eggs (x1.5):
A+ = 150% (x1.5)
B = 50% (x1)
C+ = 75% (x1.5)
1 The item Exp. Share will revert to Exp. All as in Generation I, where when one Pokémon holding this item participates in battle, all other Pokémon in the team receive experience as well. Unlike in Generation I, the experience is not split but rather received by all Pokémon. This means that the participating Pokemon receive 100% experience, while non-participating Pokémon receive 50% experience. Source.
Best Answer
AFAIK as long as you do not take out the Eevee from the day care, it will continue to pass on Wish to its children. So if you are just keeping it in there to make a lot of Eevees, it will serve its purpose.
If you really want to keep wish on it, then you can remove it periodically from the daycare and rearrange the moves it has learned, so that Wish ends up at the bottom. The moves will be learnt by deleting ones from the top and adding a move to the bottom of the move list. This will give you a chance to keep wish on the Eevee while it is leveling and learning moves in the daycare. (You have a window of 3 move learns before you rearrange or else you will lose Wish)
If by chance you end up losing Wish then you have to go to the move re-learner and pony up a Heart Scale.
PS: I bred Stealth Rock onto my Tyranitar(Larvitars) this way. So I know it works out better and takes very little effort on your part.