You do understand that during the 2X acient event you have all of a 1% chance to pull a Lego.

Also you do understand that alot of Epic are just as good or better than some Legos?

To me too many people get stuck on the color of the Champ and not if they are any good ( I used to get caught in this also)

Hi, kola02 ! If you suspect that there is some special mechanics to decrease the likelihood of getting a Legendary Champion by an early-game player - that is not the case; there is simply no such system. All the players have an equal chance of getting a Champion of a particular rarity. So no worries, you'll get your Lego at some point.

Thank you for the question! 

Indeed you should get a legendary very soon from an ancient, due to the mercy system. 150 shards without legendary are allready bad luck.

But keep in mind that the description of the Mercy System is kind of misleading. 

It says that you get into Mercy Counter once you reached a number of 200 ancients shards without a legendary champ. Actually pulling an epic champ will not advance the counter (will also not reset it) so you might need additional ancient shards to reach the mercy legendary.