If you could create your own breed of Cards what would they be like?

already done in the custom cards

I'd say Dice Summoning.

Roll a dice up to three times (The number of times the monster would be able to roll depends on it's level ratio, so each monster with the ability will vary.) Summon a monster equal to or less than the sum of your rollings. (Depends once again on the ratio of level is where the summoning location would be.)

Leon thats a pretty good idea actually

Xyz fusion you fuse xyz monsters to gather

they probably would do that sometime in the near future

Public Servant Archetype. Nurse, cop, teacher, etc

maybe an archetype based on coin flips

Xyz fusion, you fuse Xyz monsters together and you get lp equel to there attack and ther attack is also eqeul to your lp

Amar. They have that already. Arcana Force

no i don't mean in that way
i mean in terms of an effect like flip a coin ss a fusion monster if heads or a synchro if tails 
idk i was just rambling anyway

sounds interesting

I'd have my own spells, monsters, and traps, to go with my random deck.

id probably make more red dragon cards with leon... if he finishes and lets me XD

I would make an archetype based on being shuffled from the field or graveyard back into the deck. They would also have effects from when they are normal summoned. Say, one level four would be when it is normal summoned, send the top two cards of your deck to the grave. If it is shuffled from the field or deck into the grave, banish up to two cards from either player's graveyard.

ooo i have one.
Ghost Monsters. It would be a new Mechanic.
You're allowed 5 and they begin the duel and stay face down in the graveyard. Consider this "Limbo"

When a Normal Monster is Successfully summoned, you can send it to the graveyard to Ghost summon the corresponding Ghost monster from Limbo, this is not considered a normal or special summon.

For example, say you special summon Gemini Elf. You can send it to the graveyard to special summon (G)Gemini Elf.

When a Ghost monster would be sent to the graveyard, it is placed back in Limbo to be used again later.

Basically, normal monsters get effects.

Oh wow Ding! That's an interesting concept!