Yeah a counter would be nice, but the system wrks a way in which a counter makes no sense or wouldnt work.
Plarium showed that they really plan what Champions u´ll get and after how many shards u get them with the Countress Lix Event.
Theres an algorythm which gives u a championrewardlist for using shards.
So the game allready knows which champions you will get with the next x shards, like in the event.
It´s just sad, that the boost quote is just a fiction to motivate players to spend money into the game. Maybe that was my poblem why I got no legendary ^^
Actually I have listed my shard pulls (legendary and epics) for the last 8 months. I am playing on my main (Dolphin) and some FTP accounts. I can give the numbers on probability to draw a leggo or epic so the analysis is based on the number of shards I have pulled.
Ancient x1 9.26 % epic, 0.85% legendary
Ancient x2 18.03 % epic, 1.02 % legendary
Void x1 8.73 % epic 0.94% legendary
Void x2 18.86% epic 0.66% legendary
Sacred x1 91.6% epic 8.4% legendary
Sacred x2 85% epic 15% legendary
Judging by the numbers and considering the inaccuracy because of the sometimes low based number of shards (*cough* sacred *cough*) I'd say that their numbers given with the probabilites are actually quite fitting.
At least I see a definite higher prob getting higher-tiered champs on x 2 events.
The boost quote is fine...I am just wondering why there is no mercy counter if it is already available and they can show it like demonstrated with the Lix-150 event