Were looking at four categories here: Effects that change a cards card type , Effects that change a cards subtype, usually a creature type , Effects that change card text , Effects that change card names
I have definitely in the past cracked a Fetch at my opponents end step out of instinct, only to then draw a Fatal Push and not be able to kill my opponents creature as I wasted my Fetchland
Wolfwillow Haven is probably the closest Standard-legal comparison we have at the moment, and whilst that card is certainly not a staple of the format, it has popped up briefly from time-to-time
Note that a source of damage having deathtouch has no effect on damage dealt to planeswalkers
Keep an eye on market trends, and consider selling cards that have significantly appreciated in value
You add cost increases to it, and subtract cost reductions from it, to arrive to the final cost