These cards were changed from my own TCG and modified for yugioh cards:

Fire Comander Omega
Fire warrior 8 star
Element Power (2nd pack)
A warrior of flames that can never be extinguished. His legendary Pheonix Pet is the only thing he cannot defeat.
Atk: 3500 Def: 2000
UR

Rocketeer
Fire machine 5 star
Tournament Pack 1
This cars gains 600 Atk for every card that has the word “rocket” or “missile” in it’s name on the feild or graveyard.
Atk: 1900 Def: 23000
R

Apocalypse
???? Divine Beast 12 stars
Magical revolution
Can only be summoned by sacrificing 3 monsters with the same attribute. The attribute of this card is the same as the attribute of the cards sacrificed. You must pay 1000 lifepoints to attack. You may choose which effects, from monsters, spell, and traps effect this card.
Atk: 7500 Def: 4000
UUR

Apocalypse Unleashed
???? Divine Beast 12 stars
magical revolution
This card CANNOT be played without sacrificing Apocalypse and the 5 keys ( “Fiendish Key”, “Fairyish Key”, “Fiery Key”, “Aqua Key” and “Plant Key”) Otherwise this card’s type and effect are the some as Apocalypse’s.
Atk: 10000 Def: 4000
UUR

Chaos Apocalypse
God(like the Egytian god cards, but this card's background is dark grey) Divine Beast 12 stars
Tournament pack 2
This card can only be played by sacrificing Apocalypse and "chaos key". Can attack every card on the field. Also can destroy every card on the field except this one and deals 300 damage to your opponent per card. Otherwise the effect is the same as Apocalypse.
Atk: 15,000 Def: 8000
UUR

more to come...

these cards are kinda broke good effects but can hardly play them probably