I have recently checked again on the upcoming Magic: the Gathering set, Kaldheim, and I have observed that Whtie is the favored color based on the power level of these new cards. One specific card that I will also feature today is the Runeforge Champion.
The card’s function is somewhat similar to that of the infamous Stoneforge Mystic, as searching cards is always a good card advantage, much more giving them alternate costs.
Runes are not yet defined in the current Kaldheim card previews but I’ve read in the comments of the Reddit thread where the card was posted is that their theory is that these Runes are sort of an equipment enchantment. In my experience in using Runes in my character in Ragnarok Online Mobile, they giving my skills additional buff and extra effect. That might also be the case here.
We can only speculate for now, but I am pretty sure Wizards can come up with a new feature in the Kaldheim set that will surely get our interest and deck strategy brewing started.