Duo color cards

[Sengiratolom]

pillars (to be made for all element combos)

Generate 1(primary color) or 1(secondary color) quantum per turn

towers

Same as above, but generate 1 quantum of both elements when played.

Card examples

Life/Death

Full Cycle (Complete Cycle when upped)                                              Dungbeetle (counts as "Other") (Elite Dungbeetle when upped)
3(life) 2(Death)                                                                                     1/0 (2/0 when upped)
At the beginning of your turn a Dungbeetle is generated.                   Can not be targeted, when the dungbeetle dies you gain 1 life.
Permanent

Air/Earth

Stone Albatros                                                                                      Granite Albatros
3(Air) 3(Earth)                                                                                       3(Air) 4(Earth)
4/6 (2/6 when burrowed)                                                                      6/5 (3/5 when burrowed)
burrowed precombat phase unless launched this or previous turn.      burrowed precombat phase unless launched this or previous turn
Launch: 2 (Air) (same functionality as dive)                                           Launch: 2(Air) (same functionality as dive)

Fire/Water

Coldflame Shield (Frostfire Shield when upped)
3(Fire) 3(Water) (3/4 upped)
Reduces physical damage by 1, has a 25% chance to freeze the oponent for 2 turns, while frozen the creature takes 1 damage per turn (2 dmg reduce 35% chance to freeze for 2 turns, 1 dmg/turn while frozen)

Light/Darkness

Light of Dawn (Shade of Dusk when upped)
1(Light)1(Darkness)(2(Light)2(Darkness)
All light creatures without an ability generate 1(Light) each turn, all darkness creatures without ability generate 1 (Darkness) each turn. (upped: normal effect+ all creatures that generate a light or darkness quantum get +1/1)
Permanent

Enthropy/Gravity

Distorded Pull (upped: Distorded Grasp)
2(Enthrophy)2(Gravity) (3 ent 3 grav when upped)
Unupped: Target creature takes damage instead of its controller, for every damage it takes, a quantum gets rearanged in the controllers quanta pool
Upped: Whenever target creature deals damage it rearanged quanta equal to its damage, for every 3 quanta rearanged this way, the creatures controller gains 1 life
This card is an aditional effect like momentum/adrenaline/immortality, so it does not alter the creatures abilities.

Time/Aether

Dimensional Rift (upped: Dimensional Vortex)
2(Time) 2(Aether) (same when upped)
1(Time)1 (Aether) Rewinds a creature you control, and replaces it with either a fate egg or a spark (Upped: upped fate egg or Ball lightning)
Permanent

2nd Batch of Dual Color Cards

Darkness/Death

Harakiri (Sepuku when upgraded)
12(Darkness)12(Death) (10/10 upped)
Your hp gets reduced to 1, you get poisoned for 50% of your max hp, your oponent gets poisoned for 50% of the hp lost this way (rounded up)

Life/Light

Regrowth (Rejuvenation when upped)
5(Life)5 (Light)
Depletes all your Life and Light quanta
Unupped: at the end of every turn, you get healed for 25% of the quanta lost this way
Upped: at the end of every turn you get healed for 35% of the quanta lost this way

Earth/Fire

Lava Cauldron (Magma Cauldron when upped)
5(Earth)5(Fire) (4/4 when upped)
2(Earth)2(Fire): Detroy target pillar and gain a cauldron charge. When 5 charges are reached, the cauldron is destroyed. When the cauldron is destroyed, it deals 1 damage to every  oponents creature, and 2 dmg to the oponent per charge.

Edit: changed some cards based on ajm6's comments

Edit 2: Added some more Duo Color cards

[Oooh Muffin]

dualpillars have been suggested before..
And right now all cards and abilities must cost one type of quanta, what you can do is make the card cost one type of quanta and the ability another type.

Try that

[Sengiratolom]

well cards costing X and an ability costing Y allready excist, the whole point is to make then 2 colored

[ajm6]

Right now there is no mechanic in place for dual cost cards which is a problem with this idea.

Duo pillars and similar have been discussed extensively in several different threads check those out.

Full cycle: Very cheap for free creature generation+ healing needs a big price increase.

Stone Albatross: Not sure about the cost, I don't like that it buries itself. For the upped it gains attack, price stays the same, ability price decreases either get rid of attack change(all else stays the same), up price(attack and skill stay the same but price needs a big bump then) , or get rid of skill price change(attack stays the same small price increase) upgrade gives way too much as is.

Coldflame shield: Price needs huge increase this is the ultimate immaterial creature control freeze+ damage when frozen +damage reduction. This is ice shield + fire shield kind of and is less than the price of either very OP as is.

Oooh muffin is right having dual costs is much harder than a card with only a single cost. Card cost and card ability can be evaluated separately so quanta type doesn't matter. A dual cost means you have to evaluate the quanta available in both pools which is more difficult and will slow the game down.
Light of Dawn: Ok it sounds alright. Upped I'm not sure about it price might need an increase.

Distorted Pull: Needs a price increase. Upped needs a huge price increase quanta control + healing + no disadvantage= OP.

Dimensional rift: ok I guess but I wouldn't use it.

Interesting Ideas but need a lot of work to be viable

[Sengiratolom]

1st batch cards cost adjusted acording to amj6's comments and added 3 cards

[Bloodshadow]

The hardcore coders will tell you that coding duo-cost cards will require a complete rewrite of the entire game.

But... Here's something I made a while ago: