*nods* Very well.
Just for clarification (not everyone has experience with the OCG)...
Cyclone = Mystical Space Typhoon
Tempest = Heavy Storm
Destruction Ring = Ring of Destruction*
Holy Barrier - Mirror Force = Mirror Force
*This is only an assumption, for there is an actual TCG card named Destruction Ring. You destroy one of your own monsters and inflict 1000 damage to each player.
Also, I cringe ever-so-slightly when I see 4). How will it be judged if one (or any) of the seven listed cards are 'beneficial to the deck's main tribe'? All seven cards are highly useful in just about any deck that plans on winning.
It's actually this exact rule that makes me think modifying the card effects themselves might be better than forbidding them outright. If they are modified (with added activation costs and/or requirements, for example), there would be no need to forbid them, because a) we know they would be fair, b) we know they would be beneficial only in certain decks, and c) we would still be being creative.