Spells that prevent your opponents from bringing cards back from their graveyards, like Cling to Dust and Silent Gravestone
Ultra Magnus's controller chooses which player or planeswalker the artifact creature is attacking
Even if the combo and the delirium are excluded, the ability itself goes well with the Lakdos Mid, but if the first ability is empty, The Mardu Grizzin Deck actively abandons the handed passenger and relieves the loss of the hand, and also has a full -time full -turn kill if you give an additional combat opportunity in Passhelion No
Filling your deck with cheap, generically useful spells also ensures you can curve out and not leave mana on the table for want of the right opportunity its hard to not find something to do with a handful of Lightning Bolts
This is incredibly jank programming, but it is not the bottleneck in the card generation (the GPT-2 text generation is) and streamlining the code workflow would not have a noticable effect on performance (image generation currently takes about 3s while card generation takes 10s-30s)
This can be a powerful effect if you need to filter cards and have a use for the discard, but it can also wind up leaving you down on cards in circumstances where youre unable to capitalize on this type of effect