Oh, and Mind Flayers (or Illithid) are TSR's (scaled down) take on The Star-Spawn of Cthulhu (but note that the Cthonians are underground squiddy sort of things).
Oh, and Strike My Pretty! (1) This causes whatever creature you have deployed to attack your opponent (same rules as for backlash attacks). 'And with a lithe leap the creature was upon him!' Add Arcane as a Damage bonus?
Damage Cards - Derringer (0), 2 Dam Direct Physical, 'A little pistol that would fit in your palm'. Peace Maker (0), 4 Dam, Direct Physical, 'Meet the law of the west'. Powder Keg (0), 12 Dam, Direct Physical, 'Gunpowder, treason and plot'. (Not exactly mythos, but it's that or a case of dynamite.) Hit and Run (1), 6 Dam, Direct Physical, 'I just sat there and waited for him...' ElectroShockTherapy (1) Opponent loses 6 San, 3 Arcane and 3 Defense, 'This will cure him, I'm sure of it!'.
Lure of Tsathoggua (2) Damage 12 + Arcane, Opponent loses 6 San, gains 1 Arcane, 'Why lure a thief when I can get a plump merchant?' (Illustration should be two floating gemstones).
[Card Suggestion]Obsidian Idol. 'A strangely repulsive figurine of a toad.' When played, you 'steal' your opponents current summons (and get any 'when summoned' effects). 1 SAN.
[Card Suggestion]Dhole. 'The vast chasm of its Maw!' Damage 24 + Arcane, suffered by both players, bypasses Immunity. Human only wins if they are alive at the end of the turn.
With monsters you could have them attack on the round that they are played (except the shoggoth, which is busy eating). After that they would work as they do now.
I have Bhyakee out (Attack 3) and 3 Arcane, opponent has Xenophobia, 4 defense and 2 taint. They attack me and take -1 point of damage on the backlash? You might want to check the maths. I also seemed to get headed 8 after casting a Dark Ritual.
Sometimes the computers Taint will just vanish. It had 4 taint and 4hp, before it attacked with a Tommy gun, took 2 damage on backlash (Shuggoth - Shambler), 4 damage from taint - it ended up on 1hp with 0 taint. Taint should still be there, so I get credit for the damage is caused (even if it didn't kill him)?
Megalomania is bad for the CPU. Get your Elder Sign out and play him a couple more Taint cards. Play Blackmail if yo've got it, then make sure you've got a nice damage card to finish him off with.
Blackmail is sort of helpful to you oppoent - they get to swap a bad card for a random card. Where it hurts them is when they have some taint and/or meglomania running - they'll get hit by it during the Blackmail cycle. Coupla blackmail cards at the right time could make a BIG hole in their health.
Need more feedback from Mad Experiment, especially if you are already insane (esp. Xenophobia).
AI is still playing healing cards when it's at full health. How do I tell the difference between in playing a card and it discarding one?
Should Dark Ritual give the life gain if the victim is invulnerable to the attack?