Lycee actually has a fan translation currently being worked on by my friend Blitzwing01. It's going to be a card database more than anything, so get those plastic sleeves ready.
Lycee uses both Doujin and Official Canon artwork from Leaf, Navel, TYPE-MOON, Alicesoft, etc. You can find the preliminary site here.
http://lycee.omoshiroi.info/Amongst the TYPE-MOON set there are two limited cards. These are literally the holy grail of rareness, as what I believe in 10000 packages of cards, there is 1 printed.
TypeMoon Set 1:
CH-0437 L 女 Gold Tiger
CH-0438 L 女 Silver Ciel
Set 2:
CH-0638 L Red Shokatsu Rin
CH-0639 L Green Wakame
And etc. Thankfully Aoko in the TM set is a Rare in two cases, and 1 foil.
Rarity Goes by Common --> Uncommon --> Rare --> Promotional (Deck/Event Only) --> Foil --> Limited (Which come printed on the card with a "Omedetou!!!!")
~Chun