I’m sure we are all tired of hearing of new keywords every set, however I am going to bore your more…
My keyword is called Spectrum charge, a new mechanic that allows you to cast cetin spells as instants and without paying mana for them. Sounds like pitch right? Not so, as with my “pitch” cards you not only have to pitch the right color you may have to pitch multiple cards. Well I will let the card speak for its self, here is my first Spectrum Charged card:

As you can see from the wording it requires 1

color card to be pitched, its ok for in some situations were you are trying to get rid of that Stasis with Kismet out.
Without further ado here is the second possibility of the mechanic:

Here it gets tricky. As now you need to pitch two different colors to feed the cost or pay the 2

and

for it. Here is where this mechanic gets interesting, you can either pitch a red card with 1

or more

in the casting cost and white card with 1

or more

in its casting cost. However you can do something were you meld the colors, you can pitch something like Lightning Helix to pay both color costs.
Originally I wanted this to be a mechanic that only artifacts would use because I wanted a way you can splash color with playing artifacts, here is one example:

The same idea fits this Spectrum Charge cost as the last card, you can either pitch a card that has 1

or more

in its casting cost and a card that has 1

or more

in its casting cost to pay for it or something that has both mana symbols.
Here is one more twist on the mechanic:

Now in this you are required to pitch not one

mana symbol but 2 so you pitch something like Distress to this to pay both costs or pitch two duress.
Questions comments are greatly appreciated please let me know if I should update the reminder text.