Dj Owl
I would like to see cards that have specials and property that have a positive effect on other certain cards. I cool real world card game called yu gi oh (that i played with my friends years ago(about 7)) has cards like this that can make cards with a certain word in the name or with a certain type stronger or gain a special ability. For a better example there is the gladiator beast that can swap out for each other some times gain a special ability when this happens.
maybe back row kingdom units that raises the speed of front row kingdom units or a type of dragon gets stronger when there is another one in the same battle or a demon type of demon that make the shadow demon faster
you mean like kingdom cards that already boost other cards like [but restricted too] questing knight [ boosts armor, att, and acc] huntsman [ boosts speed] Corwin [ attack] eldwyn[ attack and acc] grey mage [ attack] apprentice [ attack] wizard [ acc.] Koylr[ attack] or maybe you are talking about the veteran property that raises almost every stat.
I you are talking about like the to swamp guard brothers that is in yugioh [ red and blue] that there abities are if the other is on the field this card gets a 500 attack boost those kinds of cards weren't very popular to use in yugioh [even though it did have them] since for them to be worth the effort both needed to be on the field and 1] they never lasted long enough for both to be on the field and 2] you would need to draw both those cards in your hand a play them both at the same time and they would need to stay together. I would rather have a generic boosters like questing knight