how about these cards:

[Urayne]

[Dog King]

Okay so the art for all these cards are terrible, all I can see is a bunch of pixels.

the first monster.... wow freeze shock and fusion bolt....dont make this game into pokemon

but the second part of effect, what if they dont have 2 monsters? what then

second card is overpowered as hell, 2 monsters to be tributed for something that could easily instantly have 8000 or even 10000 atk with no restrictions.... wow

third card umm summoning it isnt hard and again well too much atk and banishing 10 cards from their deck is just...

and the last part of its effect makes no sense at all, what does it even mean

 

and also the grammar of all these cards is pretty bad and you need to use cap locks button more, try look at some other cards for grammar mistakes but srsly all these cards are op as hell lol

[Flash Flyer - Sakura]

I'll grade these using the RC standards.

 

- Zekrom can't have 2 types. You're better off making it a LIGHT Dragon monster (or give it one Type as printed and the other one via effect)

- Black Kyurem's ATK/DEF can't exceed 5000 each (Do not use the recent anime as an excuse for it to have more)

- If Zekrom can only be summoned via its effect (and when it's killed), how do you expect to summon it in the first place. Also, ATK gain effect is Slifer's one on steroids.

- Kyurem's last effect makes no sense, aside from it gaining some points and requiring to remove counters over the next 5 turns (which serve no apparent purpose)

- OCG is very poor.

- Effects do not have names in the TCG; omit them. (This may be Pop Culture, but don't turn this into Pokemon CCG)

 

YAP pretty much summed up the rest of what I would say here.

Apologies if I was harsh in this review (and I shouldn't be applying RC logic here), but your cards need a lot of work.