Does OP changes only first move or whole sequence of the turn?
If it changes whole sequence, does this reflects on next turns?

OP makes the turns random turn cycle go in your favor.. meaning it is 121212 with you being 1..
and future turns are unaffected by this...
random turn order means each turn the order is determined randomly..
cyclic means that it alternates.. 121212 then 212121.. using a OP card in cyclic turn order will modify *that turn* without altering the future turns order

I asked because OP description is that card affects first move only. So I expect sequence 21212121... to be transformed in 1221212121.

If both players play OP, does cycle order have effect or first move is random?

both OP cancel each other i believe, so the original order remains

haven't tested it in cyclic order game, but 2 OP's should resolve back to the natural cyclic order... remember ofc' that multiple OP's will give you a greater precedence over a player using less OP's

I made a foolish mistake earlier.. since this game uses a 122112 format, not a 121212 format.. but have proven that OP will decide the entire turns sequence, and same OP on either side will cancel it out and have whatever one was deemed in settings decide the outcome.

http://warlight.net/MultiPlayer.aspx?GameID=1868053

past tests concerning OP/OD
http://warlight.net/MultiPlayer.aspx?GameID=1551129
http://warlight.net/MultiPlayer.aspx?GameID=1551082

if anyone cares to note, I added my test account to my profile page, and all the current test games as it's favorites