The random rule is not okay

[Scalizor]

Random rule wasn't as bad for me until I got to Tataru in Heavensward. I hate Random, I hate Chaos and I hate the fact that they put those two together on an NPC that has a 2-3% drop rate on the last 2 NPC cards I need — I know they can also be obtained from Platinum packs, but that could take a while.
It's so RNG-based that I'm starting to get sick of it. I know it's meant to be hard, but I'd rather play against an NPC with a smarter AI or better cards than leave it up to luck. Not to mention the fact that she isn't available the whole time.