A lot of Faerie designs lend themselves naturally to the flash gameplay that Dimir decks are often interested in, and its definitely worth exploring in the right Cube environment
Although the sacrifice mechanic was introduced in Alpha, sacrifice was only made a keyword action in Revised, the first core set
Which in turn means that you can choose a creature from Player A as My First Friend and then, if Player C is about to die from Player D's attack, you can kill My First Friend at instant speed, flip Zenos into Shinryu, choose Player C (who's about to die), and when C does die you win the game on the spot
Mirage Dragon protects these swings from battle traps like Sakuretsu Armor
Blast-Furnace Hellkite This 5/5 fun Dragon does cost a pricey nine mana
Another trigger that benefits here is at the beginning of combat on your turn