So i decided to try this because i was curious and wanted Urfwick from the upcoming Blue Essence (BE) sale come game currency conversion. Keep in mind this is not counting any BE obtained other sources, just MCS. If you dont know, you can buy Mystery Champion Shards (MCS for short) for 198rp. 5 of these roughly equates to $7.50 (slightly more but only by pennies). So i decided to do a test. I bought 25 MCS's and did 5 batches of 5 as a means of getting an average for how much New BE you would get from $7.50. From what i have heard Riot is taking our current blue essence and giving us x6.5 that number into the new BE. Here are the results after the 6.5x conversion:

Batch 1: 8729.5 BE + Batch 2: 9288.5 BE + Batch 3: 8729.5 BE + Batch 4: 9990.5 BE + Batch 5: 9288.5 BE

25 bought: 46026.5 BE / 5 = Average of 9205.3 BE per $7.50

150,000 BE / 9205.3 BE = 16.3 rounded

You would need to purchase 5 MCS's 16.3 times to get Urfwick.

16.3 x 7.5 = 122.25

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From my test, Urfwick costs a grand total of:

~$122.25

Keep in mind Numbers will vary due to the randomness of what champions will be received from the MCS's

(if you are curious as to why all the batches have a .5 after them is because 6.5 multiplied by an odd number will always produce that)