if you are f2p, forget about most of fussions..look on Summon Rush...3500 points...thats are 7 sacred shard...you can get One in monthly quests, once in a month...and may be something from CB, but may be (if RNG gods give you Unkillable and Mass CS champions, near 6-7 heroes from 700)...and thats it...so for f2p players choise is easy, fussion 2 times of year...or just many incopleted fusions, like me i and list of heroes with 60-70-80-95 fragments...if you are lucky for this year waiting you can even see missing fragment event, altrrough thats happens 1 or 2 times for this year, with no warning, so you can miss them too...i just pull all my shards, which is mistake, because i know i cannot get second fragments with only one Sacred...and from this sacred i get, can you guess, an epic DUPE...and for the end of my second year, i finally get my 6xt void epic - Haarken, which is basically crap...i already stop spending anything, there is no point to play f2p after level 90, all rewards are taken, no more shards, mission became projects for an year...and no more shards from monthly reward, because as Plarium says, thats bad, bad RNG...i will not save any from all this Dupes i pull...because im care less and less for comming "dupe system"...as i saw ideas on clips, well, it is awfull, complicate and will give us nothing, than little power-ups for heroes we will never use...more probably im start searching some game either fo f2p, either for monthly fee (like WoW), because here potential is over, whats left is just prays to RNG gods to give us mass CS or Unkillable hero and grind, grind, grind....