Read more If you want to read up on the topic as a introduction, you can read this (older) but interesting article by wizards them self can be found here
It works, but there is a lot of improvement to be made in the way a card converted mana cost and Subtype is generated, probably estimating those aspects using a bit more of information, instead of only using description, would be a great choice
But if youve been dreaming of having Sauron lead your deck ever since they announced the Lord of the Rings crossover, and you wanna toss a bit of extra money at it, make sure to stick around till the end
Each creature you tap while casting a legendary creature spell pays for or one mana of that creature's color.) Whenever your commander attacks, create a 1/1 red Mercenary creature token with ": Target creature you control gets +1/+0 until end of turn
Mostly, it is for collectibility reasons that certain Magic: The Gathering cards can become so expensive