Rookie Phenoms is the lone insert set in 1994 Leaf Limited Rookies. The set consists of ten card set that was inserted in 1:12 packs and serial numbered to 5000 copies each. Although not technically a rookie card, the Alex Rodriguez in this set is highly sought after. Buyers should beware of purchasing this card "raw" as many copies are known to be trimmed to eliminate damage from the edges of the card.