I've also seen many of these strange "X%" badges/graphics emblazoned upon the various items Elvenar has often tried to sell me - from "Troops Packages" to "KP Stacks" to the "Bundles of Time Instants" as shown in the OP above, and they also feature on
some of the offers which appear at least once during Events, selling Small/Medium/Large "bundles" of Event Currency - although to be fair, not
all of those carry the mysterious "20/30/xx%" badges. When they do, however, I've sometimes taken the time to calculate whether the (say) "20% off" bundle* of Event Currency really
is 20% cheaper than buying standard-priced Event Currency (using the promoted "most popular" £19.99 purchase as my cost-per-Diamond comparison), and I've found that this is not the case.
(* NB : It's true that the word "off" isn't actually there - as seen in the OP, the badges just say "xx%" - but what else could that possibly mean but "20% off"...?!)
Even when ignoring, as I do, the fact that Diamonds have no fixed price (becoming cheaper the more one buys at once), the actual percentages by which the Event Currency "sale bundles" are cheaper have varied each time, with the "on-sale" Event Currency bundles being typically
somewhat cheaper than directly buying Event Currency using the "+" button (which always features so helpfully next to my Event Currency total...), but so far none of the discount percentages has actually
matched the 20%/30%/whatever% "Gold Badge" amount emblazoned on the relevant Event Currency "sale" package(s).
All very mysterious - and I'd take a reasonably informed guess that it's probably not 100% legal, either... at least here in the UK, where any item (real or virtual, and in a physical shop or online) can only be offered at "sale price" if that exact same item has previously been offered for at least 28
consecutive days at a higher price
and during the past 12 months. I'll have to take others' word on US and/or European law - not areas I know much about!
Of course, now that Elvenar has finally "jumped the shark" in terms of outraging its loyal fans, by dropping all pretence of player choice within Events and replacing (currently still in Beta) the already-too-random "three chests" system with the new out-and-out-wholly-random "undisguised lottery" which is the proposed upcoming Winter Event, my interest is strictly to view from the sidelines, having given over my formerly busy, demanding end-of-Orcs City to my ex-Fellowship, and now owning a laid-back, cheap-n-cheerful, tiny little village - just so that I can still post on here, when the (rare) urge drives me to do so.
I must say, though, that throwing in the towel (the game had become a full-time job!) was the best decision I've made in years - the relief of not having had to go through the miseries of the Autumn Zodiac Event was immense, and it's only multiplied by knowing that I also don't have to care any more about the cynical degradation by Innogames of the (already overly luck-based) Winter Event into the blatant casino cash-grab which is soon to drop onto the heads of the unsuspecting players in the live worlds. You all have my genuine sympathy - and I'm guessing that it's going to take
FAR more than a few strange "20% off something unspecified" offers to cause the natives to stop rioting once they realise what Elvenar's Santa is bringing them for
this year's Festive "treat"...
/sigh
PS: @Vetrinus : Love your signature (Jim Sterling is THE man!)... I'm an old-time gamer of 35+ years, and while mobile/browser F2P games are all greedy, Elvenar really does set new (low) standards of avarice - and earn far more than most of its players realise - while disguising its grasping motives as "game balancing"... :/