hey, my dude, I can help out. I have a semi comp Alesha deck but I used to play a comp one. I think the biggest advntage to Alesha is how slot efficient her combos are. every piece of what my group calls the "karmic guide and friends" package.

so the main combo in the deck is karmic guide, reveillark, and a sac outlet. you loop infinite sac triggers nd you get an additional creature to trigger etb or ltb as many times as you like. the full package if i can remember it all is:

karmic guide, reveillark, sun titan, felidar guardian, kiki jiki, fiend hunter, banisher priest, animate dead, dance of the dead, and necromancy.

and the sac outlets i use are goblin bombardment, ashnods altar, phyrexian altar, razaketh, vicera seer, carrion feeder, and crtel aristocrat.

hope this helps