Spawn of Mammon

The Spawn of Mammon is a thin, demonic creature with coins for teeth, an it cries dollar bills constantly. It has a large penny lodged in its head and the site bleeds profusely.

Gimmick
The Spawn's incredible wealth is weaponized against the Player, its main ranged attack is spewing a powerful stream of coins, which deals a significant amount of damage. It can also rip the penny from its head at half health, and proceed to roll it along the ground at you. This rolling penny can only be used once by the Spawn, as it will shatter upon impact. It makes up for this by dealing an incredible amount of damage, even one-shotting some characters. The rolling penny will damage absolutely anything and everything it comes in contact with, including other monsters. It will pierce through monsters and will bounce off of walls up to 3 times before coming to a halt.

When it deals damage, the Player will lose some of their money and heal the Spawn for half of the damage done. Upon death, the spawn will drop all of the money it took multiplied by a number determined by variant, plus a flat bonus.

Variants
The Spawn of Mammon are numerous and come in several varieties.

Spawn of Mammon
Drops an Item's Worth of cash, and has a 1.5x return multiplier. Steals 1/8 of an Item's worth whenever damaging the Player.
 * HP: Below Average
 * Speed: Quick
 * Damage: Above Average

Archspawn of Mammon
Drops a Special Item's Worth of cash, and has a 2x return multiplier.
 * HP: Average
 * Speed: Quick
 * Damage: Good

Satanic Avatar of Mammon
Drops 3 Items' Worth of cash, and has a 2.5x return multiplier. It also deals more damage to wealthier victims, and has a new jump attack. Will also drop the Penny of Ultimate Destruction.
 * HP: Resilient
 * Speed: Fast
 * Damage: High