Fixed certain items not handling stat changes correctly.

Revamped the way prices are set for both characters.

• Both characters now have co-op support. Prices will adjust based on the closest player to the item.
  
• Items that cost broken hearts now visually look similar to devil deals.
  
• Reworked how it's determined which items cost broken hearts for Tainted Mastema.

Mastema

• No longer has the Sanguine Bond spikes in devil rooms or gains a Holy Mantle shield from buying items in angel rooms. Instead, angel room items are no longer choice pedestals.
  
• Updated stage portrait.

Tainted Mastema

• Also no longer has the Sanguine Bond spikes by default.
  
• Can now lock himself into devil deals.
  
• All treasure rooms now have 2 items by default, one of them being a blind item. Both items can be taken.
  
• Lowered the chance of devil items appearing in treasure rooms from 50% to 33%.
  
• Items in shops now only cost broken hearts. Pickups are surrounded by spikes.
  
• In Greed Mode, half soul hearts have a chance to spawn instead of coins when playing as Tainted Mastema.

• Bloody Harvest and Twisted Faith now properly synergize with vanilla items that affect item prices.
  
• Infernal Covenant now grants its item in the form of a Lemegeton wisp on use. Then once it's successfully charged, the actual item is given permanently.
  
• Taking an item that costs broken hearts now counts towards increasing the chance of a Ritual room spawning.
  
• The chance for a Ritual room appearing now starts at 1% for Tainted Mastema instead of 5%.
  
• Updated mod thumbnail.
  
• Fixed Desecrated Heart being usable while DSS or MCM is open.
  
• Fixed a crash when either character enters the treasure room while holding Lawful from Deliverance.

• Most items from the boss pool no longer cost broken hearts if found elsewhere as Tainted Mastema.
  
• Fixed Desecrated Heart being able to kill you if you have enough health while in lost form.

• Desecrated Heart now gains 2 charges on hit when you have Habit.
  
• Fixed the achievement sprite for Ring of Shadows showing a blank paper.

They grow up so fast.

HUGE thank you to Warhamm2000 and Nathaniel_JPG for all their amazing sprites and art. This update wouldn't have been possible without them.

Gave both characters a fresh new look, as well as their menu art and starting room drawings.

Mastema

• Now starts with a custom pocket active, Consecrated Heart. The item acts the same exact way as his old Prayer Card, adding an eternal heart on use, but only half soul hearts after depths.
  
• Planetarium items are no longer free.

Tainted Mastema

• Grew a tail.
  
• No longer has the effect of Duality.
  
• No longer has an increased chance of finding soul hearts.
  
• Removed all previous ways of removing broken hearts.
  
• Now starts with a custom pocket active, Desecrated Heart:
  
  • Can be used if there's at least 1 charge.
    
  • On use, chance to remove 1 broken heart or take 1 full heart of damage depending on the amount of charges the item is used at. Guaranteed to remove a broken heart when used at full charge.
    
  • Can be charged by clearing rooms and taking damage.
    
  • Cannot be overcharged or charged with batteries.
• Items in boss rooms, boss challenge rooms, and the silver treasure rooms in greed mode no longer cost broken hearts.
  
• Blacklisted some additional items from being able to give broken hearts.
  
• Prevented items from being able to have a soul heart cost.
  
• Set tainted Mastema's health type for REPENTOGON compatibility.

• Added achievement sprites for every unlock (they look INSANE).
  
• Removed Goodwill Tag and replaced it with a new item, Ring of Shadows:
  
  • Taking damage has a 50% chance to create a black brimstone ring around you. The ring inherits your tear effects.
• Reworked Torn Wings' positive effect. The item now spawns a Bloody Feather when entering rooms that have pedestal items, which can be used to reroll the nearest item to an item from the devil room pool. Bloody Feathers disappear when leaving the room.
  
• Sinister Sight no longer grants homing. Only tears that cause fear will gain homing.
  
• Sinister sight now grants the player immunity to fear.
  
• Shattered soul now simply spawns an extra item in devil rooms that costs broken hearts. Their cost is now equivalent to the item's quality.
  
• Items from Shattered Soul now only cost 1 broken heart for Keeper and Tainted Keeper.
  
• Reduced the damage that Satanic Charm gives but it now counts deals that were taken while not holding the trinket.
  
• Satanic Charm now also works for items that cost broken hearts.
  
• The fading damage bonus decay rate from Mastema's Wrath is now proportional to the number of stacks you have.
  
• Adjusted the cost of Soul of Mastema when certain characters use the rune.
  
• Raven Beak is now Raven Skull. Also added the item to the curse room pool.
  
• Devil's Bargain is now Infernal Covenant.
  
• Resprited Sanguine Jewel.
  
• Updated sprites for Soul of Mastema and Sinister Sight.
  
• Updated the costume for Torn Wings and Sinister Sight.

• Fixed an edge case where Tainted Mastema could pick up items for free.
  
• Fixed Infernal Covenant not accounting for items that affect certain room pools.
  
• Fixed the Satanic Ritual devil room replacing the door sprite when it shouldn't.

• Fixed Ritual rooms being able to spawn on custom floors.
  
• Fixed the pickup spawned by Mastema's Birthcake effect overlapping the Sanguine Bond spikes in devil rooms.

Actual costume fix this time.

Actual final update cause I messed something up.

I'm sorry to say, but this will more than likely be the final update for Mastema. There's nothing more I want to add or change and the mod is complete in my eyes. I may still update it in the future, but only if there are any major bugs that need to be fixed. Thank you to everyone who has ever helped me with this mod. I hope everyone continues to enjoy it as much as I enjoyed making the mod and sharing my ideas with everyone. :)

• Blacklisted Mom's Coin Purse and Guppy's Paw from giving Tainted Mastema broken hearts.
  
• Added a delay to the confessional that spawns from defeating one of the angels as Tainted Mastema.
  
• Satanic Charm now gives the full amount of damage to Tainted Mastema.
  
• Improved the sprites for Mantled Heart, Shattered Soul, and Satanic Charm.
  
• Added a sound effect when Prayer of Repentance is used.
  
• Lowered the base chance of Ritual rooms appearing for regular Mastema to 1%.
  
• Removed floor spikes from all Ritual rooms.
  
• Prevented Ritual rooms from appearing on Catacombs 1 when StageAPI is enabled due to an incompatibility with custom floors.
  
• Fixed both characters not starting with their costumes in co-op.
  
• Fixed Twisted Faith making angel items additionally cost soul hearts for Tainted Mastema.

• Added a Birthcake effect for both characters.
  
• Added the remaining custom Abyss locusts.
  
• Devil's Bargain no longer activates twice with Car Battery.
  
• Ritual rooms now only appear up to one time per run.
  
• Locked items in the Death Certificate area are now removed instead of rerolled.