At first glance, the IKO pass (both free and paid) has a huge reduction in rewards when compared to the ELD and THB passes. I decided to do a direct comparison of the actual rewards when taking the duration of the pass into account. I'm only looking at the things that are different.
Pass Duration:
ELD to THB = 112 days
THB to IKO = 91 days = 81.25% of ELD
IKO to M21 = 70 days = 62.50% OF ELD or 76.92% of THB
Free Pass Rewards:
ELD Packs = 46
THB Packs = 39
IKO Packs = 25 (changed to 30)
Expected IKO packs (based on THB) = 30 (rounded up) = 17% reduction
Expected IKO packs (based on ELD) = 29 (rounded up) = 13% reduction
Paid Pass Rewards:
ELD Gems = 2000
THB Gems = 1800
IKO Gems = 800
Expected IKO gems based on THB = 1,385 (rounded up) = 42% reduction
Expected IKO gems based on ELD = 1250 (rounded up) = 36% reduction
Other Rewards:
ELD had 10000 gold but no draft token
THB had 4000 gold and a draft token
IKO has 4000 gold and a draft token
A traditional draft token has a value of 1500 gems
1000 gold = 200 gems (based on pack price)
Conclusions:
IKO pass is a much worse value when compared to the THB pass, and is still a significantly worse value when compared to ELD.
Specifically, even when taking pass duration into account and converting rewards into gems, IKO is still a 12% reduction in gem rewards and a 13% reduction in free pass rewards.
Keep in mind that the mastery pass still costs 3400 gems. This reduction in rewards would be much more palatable if the pass was also reduced in price based on the duration of the pass (2125 gems)
Edit: /u/localghost pointed out that ELD pass actually gave 46 free packs according to the pass images, and not 42 packs.
Edit #2: /u/AintEverLucky pointed out some errors regarding the pass duration, which I've fixed. Conclusion is still accurate.
Edit #3: WotC has changed the number of free packs in the IKO pass from 25 to 30.
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