Effect help

[WolvenDoom]

2 monsters of the same level

This cards rank depends on the level of the cards used and this cards atk and def gets increased x200.This card is also treated as a Fire type monster This card can not be destroyed by a Dark type monster. Once per turn detach 1 Xyz material : half the atk of all cards your opponent controls.

 

can someone help me make it more realistic (not nurfing just making it look official) 

[Darj]

Perhaps something like this?

 

2 monsters with the same Level

This card's Rank becomes equal to the Level of its Xyz Materials, and gains 200 ATK & DEF x its Rank. This card is also treated as FIRE. This card cannot be [acronym=you must specify if it protects from destruction by battle, card effects, or both]destroyed by DARK monsters[/acronym]. Once per turn: Detach 1 Xyz Material from this card; the ATK of all monsters your opponent controls is halved.

 

Dark & Fire are not types, they are attributes, and attributes are written in caps (e.g. DARK, FIRE, WIND) on card effects.

The way you put it, the last effect is mandatory. I don't know if you want it to be like that.

 

Also, there is an issue you should address regarding the summoning condition:

What would happen to its Rank and ATK if if it has monsters with different Levels as Xyz Materials? (e.g. through Hazy Pillar)

 

Here is a suggestion for solving it:

If this card has monsters as Xyz Material (min. 1), this card's Rank becomes equal to the Level of the Xyz Material with the highest Level (Your choice, if tied). This card gains 200 ATK & DEF x its Rank.

[newhat]

Another crack at it.

 

"This card's Rank is equal to the Level of the monsters [acronym=Set at Summon and not dependent on what Level they are while attached]used for its Xyz Summon.[/acronym] Cannot be destroyed [acronym= "by battle with, or the effects of, DARK monsters" works too]by battle with DARK monsters or by the effects of DARK monsters.[/acronym] This card [acronym=From Xyz Unit]gains ATK and DEF equal to its Rank x 200.[/acronym] Once per turn: You can detach 1 Xyz Material from this card; [acronym=From Elemental HERO Great Tornado]halve the ATK of all face-up monsters your opponent controls[/acronym]."

 

I gotta remember the Acronym function. Wonder what happened to the Quote function.