Elements PvP Tournament - Your ideas!

[7wavemaster]

Jam Packed

60 card decks and no cards that help draw cards.
That means no hour glass, precog, etc.

[elements15]

i have a great idea ,, you and your opponent change decks and fight with eachothers but the winner gets his/her deck back and moves on x

[LongDono]

Unupgraded tournament idea.
Maybe only play cards with even cost, or odd cost in your deck. Skill cost do not matter. Pillers and Pendulums don't count as they dont have cost, and neither will photons, or anything else without a cost. They are not odd or even so they can be played.

[DeviousDragon98]

No more than 3 of the same card aloud! (Excluding pillars)

[Higurashi]

I see a lot of ideas that have already been done. For convenience, here's a list. Some are only possible with tweaking, so feel free to suggest tweaks.

Done as or fit as PvP Events
60-card decks
Lose to win
You are the Fake God

Done
Monodecks
Fate Egg/Mutation deck
Speed building
Mark change
Rainbow
The new (Gargoyle, Wings, Steam engine, Pandemonium)
My choice (TO selects elements allowed for each round)
No spells
Monodecks, same mark
Starter decks
The new (Forest Scorpion, Dune Scorpion, Deathstalker, Voodoo Doll, Nightmare, Short Bow, Mindgate, Chimera)
Three's a Crowd (max 3 copies of a card and max 3 elements in deck)
To the Skies! (at least 4 weapons of any kind and 4 flying weapon)
Cheapskate 5- (only cards with a cost of 5 or less)
Duality (only opposing Elements in a deck)
Creatures only (only one Element per round)
Speed-building
Quartets
Lazy man's game (no rares, no changing deck between duels)
Menagerie (only creatures and pillars/pendulums allowed, can only use one element once per round so you need 3 decks with different elements in each.)
Upped, Halloween (only aether, darkness, death, entropy, fire and gravity are legal, your mark must be one of those elements, no shields)
Upped, Rainbow
Upped, Creatures only
Upped, Trio decks

Mentioned and potentially feasible
Fractal decks only
Duo and trio decks only
No shields allowed
No more than 5 different cards in your deck.
No weapons besides Basic ones
No permanents besides pillars
Only Elements of specific colours allowed (fits with seasons/holidays)
Your decks may not cost more than X electrum to build.
No Healing cards
Only vanilla creatures
No creatures with more HP/Attack than X
New decks (ban the 2-3 or even more most used cards from each element - this could be either at the organizer's discretion or based on the (old) usage statistics)
Monodecks with only quantum pillars.
You must play the deck with mark that opponent used last game
Only creatures with abilities
Must use X amount of buffing cards
No rares
Deck size requirement as well as card number restriction
Must have X amount of Mutations/Elfs
Nymph Tears decks
Nymph Tears/Fate Egg decks
Must have X amount of Mindgate
Post deck beforehand and use only that
Dragons only
More cheapskates
Only Otyughs and buff cards
Must have X amount of Hourglasses/Precogs, possibly limit deck size
Each participant posts a prebuilt deck. Decks are then randomly distributed either for each round or all the tourny.
Max X amount of pillars/pendulums. No Immo/Nova
Your deck must contain at least one of every pillar.
Only X amount of card copies
Airborne only
Non-Airborne only (Wings banned)
6 Discords/Novas
Only 0-cost cards or random quanta cost cards
Creatures must be quinted upon play
No cards of your mark's Element
No perm control or Momentum
At least X amount of healing cards
Only Oty and low HP creatures
Only cards with an even cost allowed
No CC
Voodoo decks
No creature cards allowed (Nymph's Tears, Flying Weapon and Boneyards allowed)
Poverty (pillars, pendulums and quanta-producing creatures are banned)
Hexagon (precisely 6 copies of each card, including pillars and pendulums - e.g. either 6 or 12 lands)
A second chance (only creatures allowed are Gnome rider, Damselfly, Ash eater, Skeleton and Photon)
Must use the same deck through the whole tournament
Ye Olde Tournament (only allowed to use cards that were in Elements when it first began)
No creatures, no Fire Lance
Only one type of creature, no shields, rare weapons, creature generators or creature-creating cards
Be the Elder (max 4 copies of one card excluding pillars/pendulums, 1-3 rares, mark is set to most used quanta)
High price tourny (minimum quanta cost per card)

[Immolation]

Competition name: Necromancer

Rules: You can only use skeleton and buff cards along with pillars.

[ArcanisX]

No creature cards in deck (nymph's tears, flying weapons and graveyards allowed)

Dragon Roost (only creatures allowed in deck are Dragons)

Voodoo (only creatures allowed in deck are Voodoo Dolls, and the deck must contain 6 of them)

Slow (not allowed to play non-Pillar non-Pendulum cards for X turns)

Hyperrush (whoever gets most health after X turns wins, where X is around 1-3. Healing spells banned.)

Poverty (pillars, pendulums and quanta-producing creatures are banned)

Safe Passage aka no removal (not allowed to touch opponent's creatures in any way, including firestorms, infecting, damage-dealing shields, congeals, reverse times or whatever)

Hexagon (precisely 6 copies of each card, including pillars and pendulums - e.g. either 6 or 12 lands)

No Spells (only creatures and permanents allowed)

Swap (play whatever deck opponent gives you. No rares, the deck should be capable of generating quanta to play every card present, minimum total power of creatures in any deck is X where X should be around 50 I figure. Would probably need more clarification but I like the concept:)

[~Napalm]

I don't really have any new ideas (yet) but I would really like to see the following 2 ideas that have been put forth by others:

Play a deck that contains at least 70% cards of the element matching your previous opponents mark. (Only the very first match each participant plays can they chose anything.)

not at all sure about upgrades in this. Perhaps one for both! [/li]

Play a deck that costs no more than X electrum to build. I believe this should be from ten to a mid twenties number (thousands of course) allowing for only partially upgraded decks.

for reference, 10k is approximately 6 upgrades, 25k is approximately 16[/li]

I think both of these ideas would be fun and while limiting you in a small measure, you can go in pretty much any direction.

[LongDono]

I like what napalm said, but the last one seems like it will be hard to catch someone cheating.

[DeviousDragon98]

Who can grow the bigger scarab? 
Only Phaorohs, Scarabs and pillars aloud!
*Gonna be an epic Devouring tourney* 

another idea... Must play monolight
  -Least used element

[homoaddictus]

Elemental Shackles

At the start each match, Player 1 and Player 2 pick 3 Elements.

Player 1 can only play cards and choose mark from the 3 elements that Player 2 picked.
Player 2 can only play cards and choose mark from the 3 elements that Player 1 picked.

Shackles reset after each match.

[~Napalm]

Elemental Shackles would be fun.

EDIT: but I think it would work better as a PvP Event rather than a Tournament now that I think about it.