These are the changes to the basic version of the card, the upgraded card is usually changed in a similar way.

• Amplify (Basic: 3->2 power | Upgraded: 0M->1M)
  
• Basic Shell (3->4 shield)
  
• Biting Wind (3->4 bleed to all enemies)
  
• Blizzard (Upgraded: 8->9 damage per mana and enemy)
  
• Climax (20->25 damage after 3 turns)
  
• Deep Kiss (5L, you no longer discard cards from your hand)
  
• Desire (no longer exhausts)
  
• Double Penetration (Upgraded: 1M->0M, 2->1 double play)
  
• Drain Life (2->3 life steal)
  
• Estrus (Basic: 4->7 lust | Upgraded: 5->9 lust)
  
• Ecstasy Slash (costs 3L instead of all lust, deals damage based on current lust)
  
• Heat Blood (4->5 damage per blood stack to all enemies)
  
• Ice Storm (Upgraded: 10->11 damage per target)
  
• Lightning Strike (10->15 damage to all enemies)
  
• Mana Residue (0M->1M, 1->2 damage per card played | Upgraded: 2->3 damage an no longer extinct)
  
• Mana Stream (-1 card draw)
  
• Masochist (-2 -> -1 life loss)
  
• Mind Break (rare, 2L->6L, 7->30 damage, has extinct)
  
• Nova (+4 damage, -1 hp cost)
  
• Orgasm (fixed not being upradeable; Last stage deals 15->20 damage)
  
• Painful Memories (0->2 base damage. Adds a copy of itself to grave)
  
• Quickshot (Upgraded: +6 damage, but has extinct)
  
• Repulsive Power (8->9 damage and shield)
  
• Rising from Ash (5M->4M, 1->2 immortal gained, has extinct)
  
• Sadism (7->8 damage)
  
• Shock Wave (5->7 damage to all enemies)
  
• Spark (10->12 damage)
  
• Stigma (0L->1L)
  
• Stoneskin (Basic: +5 shield | Upgraded: +1 stonekin)
  
• Temptation (Basic: 6M->5M | Upgraded: 5M->3M)
  
• The Mistress (Basic: +2L cost | Upgraded: Passive->Extinct)
  
• Time Delatation (-2 -> -3 morale to all enemies)
  
• Tranquility (2->4 mana gained)
  
• Twisted Love (3->4 thorns)
  
• Yearning (Rare. Extinct. Gain 1 lust, draw 1 card.)
  
• Virginity (Basic: Passive | Upgraded: 1L->0L)

Cats Paw
For a rare act 3 event card with exhaust it is quite underwhelming, so let's buff it a bit:
1 Mana
Deal 1 damage 3 times, apply 3 Weaken and 3 Bleed.

Chaos Seed
So bad it should be a meme. I reimplemented the random effect to only dish out debuffs (no more healing your enemies), let it grant multiple debuffs and it was still too weak, so it now improves random spells in your hand on top of it. The card now reads:
2 Lust
Uncommon
Apply 1|3 random negative status effects to the target and improve 1 random spell in your hand until the end of battle.

Corrupted Blood
If you have a lot of bleed stacks going it is extremely hard to finish the enemy off with Corrupted Blood. And with 2M expensive to boot. Good idea, abysmal execution. Since a few lacking blood-based cards have been buffed, I've decided to do something else with it:
3 Mana
Rare
Deal 30|40 damage to all enemies. Shuffle 2 Curse of Pain into your grave.

Deja Vu
"Deja vu" (=put played cards on top of your deck) was a useless effect to base a card around. New effects:
1 Mana
Uncommon
Draw cards from your grave until you have 6|7 cards in your hand.
Note: Draws card from the deck if your grave is empty. Also, for technical reasons, does not draw cards called "Deja Vu".

Opportunist
This card was fine per se, but somehow Volatile on a fully defensive card always irked me, the theme was off, and Finger Play was just the superior defensive lust spell anyway.
N Lust
Uncommon
Volatile
Deal 3|4 damage to the target for each consumed Lust and gain shield equal to damage dealt.

Overflowing Mana
Honestly, that card worked fine in principle, but it always seemed a bit clunky to me. Also, I think there is room for another N-mana card.
N Mana
Uncommon
Gain 6|9 Shield per mana spend.

Passionate Heat
"Burn 5" was pretty much just a delayed "Deal 5 damage", and the card was extremely bad for it(one wonders if the developers intended to have burn work similar to bleed, but forgot to implement it). Now it is:
3 Lust
Rare
Extinct
Gain 1 mana per turn. Inflict 2|1 Focusing on yourself.

Strip Down
I cannot even remember what this card did, but it was probably infuriatingly bad.
3 Mana
Rare
Extinct
All damage you take is reduced to 1 for 2|3 turns. You lose 6 Defensive.

Weak Knees
Weird to give frail to enemies, which rarely does anything. Also has weak in the title, so it should give weaken! Effects:
1 Mana
Uncommon
Inflict 2|3 weaken on the target, then deal damage equal to twice the number of Weaken stacks on the target.

• Cherry Cake (12->30 max hp)
  
• Harness (removes 1 frail/weaken/focus and all constrained at start of turn)
  
• Heroes Cloak (1->3 immortal)
  
• Hunk of Meat (+6->+12 hp restored when resting)
  
• Key (while bound, remove 1 Constrained each turn)
  
• Nipple Rings (+1 Lust every 2->1 turns)
  
• Protection Ring (4->6 shield, every 1->2 turns)
  
• Wilted Rose (2->3 thorns)
  
  
• Clamps (trigger every 5->3 turns, relatively the same to the improved nipple clamps)
  
• Harness (triggers every 5->4 turns)
  
• Head Gears (was broken, now heals enemies for 5 hp every 3 turns)
  
• Yoke (was broken, now applies Focused)

• Devotion (1 mana per turn -> 1 mana per turn for the first 5 rounds of combat)
  
• Unstoppable Fury (gain 1->2 mana per kill)
  
• Warm Touch (6->12 hp healed when visiting the merchant)

• "Increased max HP" reduced to 5
  
• "Gain Essence" increased to 20
  
• "Gain Lust" increased to 10

• Surrendering no longer costs hp. Just a personal preference. On the flipside, Yoke and Head Gears actually do something.