This mod currently adds 12 + 1 items. (11 + 1 passives and 1 active)
To spawn the items use tm:(item)

If you find bugs or something please let me know!

Source code

Item list (By tier):

Boring Heart
D-tier
Gives a heart container.

Fakey
D-tier
+5 curse, +50% damage. Sold by Cursula.

Leaking Bullets
D-tier
Bullets leave a trail of water behind them.

Mystery Seed
D-tier
+5% damage. Will grow into some great someday.

-1 Bullets
C-tier
-25% damage, -30% spread, +20% firerate, -30% reload time, +10% projectile speed and +10% damage to bosses.

Ring of Financial Thing
C-tier
Enemies drop 50% more money. +1 coolness.

Large Blank
B-tier
+4 blanks on pickup, +2 extra blanks every floor

Malfunctioning Time Machine
B-tier
Active. Turns all enemies in the room to an Arrowkin. 350 damage recharge.

The Bullet Bullets
B-tier
Firing has a 10% chance to fire a Blasphemy projectile.

+2 Bullets
A-tier
+50% damage.

Super Bouncy Bullets
A-tier
+2 range, +5 bounces, +3 pierces.

Budget Shelleton Key
S-tier
Gives 99 keys and 5 curse. Can't be dropped.

Cheese Toast
S-tier
+1 health, +3 coolness, +20% damage, +2 speed, -20% shop prices, -50% spread.

Golden Cylinder
S-Tier
+20% firerate, 1 curse, enemies drop 900% more money.

Budget Mimic Tooth Necklace
EXCLUDED
+50 curse to make all chests mimics. (the exact number should be 47 but 50 looks nicer)

Special Thanks
BleakBullets (For helping me with basically everything)
SpecialAPI (For helping me change important things)
The other modders that exist in the EtG Discord server