If the card has a strong ability or synergy, it might compete with cards like Arlinn Kord, which offers versatility and creature enhancement in werewolf decks
(And if you haven't seen it yet, don't forget to check out the Yu-Gi-Oh
I think its a little slow for other formats, as by the time youre casting a 7-mana card, youll likely want it to do more than give you the chance at more mana in the future
This creates a constant "stadium war," where players vie to control the game's environment
Similarly, if the main disadvantage of an effect is your opponent playing around it, in an open-decklist tournament, playing only one can be correct to force opponents to respect it with the minimum amount of investment
Mark Rosewater informed players that they were using the word typal, instead