Just got my fourth Nikos today so I decided to really push this deck. So far, it's been a ton of fun. Probably best moment was having 3 secret weapons and a xulta loyalist all shifted, then dropping a nikos and 1 shotting the enemy.
Eilyn's choice because I like that I can use it to counter a harsh rule, and it deals with bigs. It also doesn't ramp the enemy like ice bolt. I have 8 cards for small creatures, so I don't really see the need for an ice bolt. So far it's done well.
Honor of Claws because it synergizes with privelege. I want to hit all my land drops, and this seemed a better choice than the other draw options.
Royal decree lets you handle the big threat (kill all, icaria, etc). We also have enough flyers with valk and winchest, plus the shifted creatures, that we can consistently get that out on turn 4 or 5, which is when I really want it.
Bam, Sneekee - I thought about this or rost, but you can put out this turn 3 and there are too many cases of not getting rost out on 5.
Sediti is obvious - super op and works well with our flyers/shift
I've played a limited number of games (~500 master atm), and this probably isn't tier 1, but it's done surprisingly well. If you're looking for a shift, then look no further.