So both Hearthstone and Yu gi oh have an limit on how many creatures you can have on the field. HS 7 and yugioh I think 4.

Would a similar rule make sense in Magic? Imho I hate it when I get beaten by some splintertwin - kiki jiki - avatar of zendikar shenanigans in EDH but I can live with that. In Legacy, it probably will only hurt elfball and maaaybe goblins. (is empty the warrens still a thing?).

Note that I dont want a rule change or anything, I'm just pondering and want to come up with some arguments why this is good or bad!

So what do you guys say if there is a 7 creatures cap in magic?