I've uploaded a new version to Google Play and submitted it to Apple Review. The Windows version is already available for download.
Version 2.0.4 contains mostly critical bugfixes and improvements for the problems you discovered. Please note that the simulation version is upgraded from 18 to 19, because there are some breaking changes. However, no hard balancing changes have been done. All dramatic balancing adjustments will be done when the season ends and the DoL content is taken over to standard.
Balancing
Better luck calculation for negative abilities (you can hit Ghost creeps with Roderic now)
Bugfixes
Knock back works as intended
Abyss King damage bonus is always applied correctly
Guard aura range is now dynamic and can be affected by Helm of Hades
Fix crash when Unicorn is killed the moment it was built
Unicorn tears work with wedding rings/Yggdrasil
Have fun with the new version, and happy building!
Thanks for sharing!
Ahh, your unicorn got killed by the training hologram creeps!
You see at the end of that round first the boss gets killed by unicorn and once then next wave triggers the holograms, the Unicorn dies.