Its very difficult for your opponents to stop you from winning at a certain point when youre repeatedly proliferating with a card like Karn's Bastion
Recursion gives you a graveyard that works like a second hand, Imotekh turns that churn into a token army, and black mana backs it with removal and card draw
The creatures pretty small, but sneak makes it easy to get the first trigger and start doubling up on artifacts, whether that means a surge of mana from a second Relic of Sauron or two finishers like Portal to Phyrexia and Cityscape Leveler
Once an interrupt was played, only more interrupts could be played
If you dont want to spend any money on Arena, then of course this wont be for you
As such, I like to think of morph as the first mechanic designed by the Rules Team