A pacing issue: From the start to Ascension Rank 15, the game slowly speeds up, but after Rank 15 it slows way down. Medals became harder to gain first however by Rank 20 Energy gain has also begun plateaued. I am at Rank 23 and it is faster to leave the game running overnight as offline gains are awful at my rank. Also, 300 blocks don't fuse but Block List shows it should. Maybe have 300 blocks merge and disappear into resources thus solving two problems at once.
I would like to use Cosmic Coins for all special/holiday heroes. I cannot currently use CC on the Xmas heroes from last December, but the Halloween and St. Patricks day heroes do allow the use of CC.
 "Block Fuser"){kind=icon}
 "Defender Idle: New Beginning"){kind=icon}
 "Cosmos Quest: The Origin"){kind=icon}