This effect should be crisp and uniform across the entire card
If you are inclined to play the Jeskai builds of Miracles that have lots of dual lands, Counterspell might be better
If your life total is brought to 0 or less at the same time that a creature an opponent controls is dealt lethal damage, you lose the game before Massacre Wurm's last ability goes on the stack
My original idea was to build an artifact cube with Scars of Mirrodin block cards and Kaladesh block cards, but given how parasitic Infect and Energy are, I am better off building a cube only with Kaladesh block cards, and a few enablers
Currently, the card PENNY, Illustration rare is sold for around 15 euros
After a few turns, it transforms into Deathbonnet Hulk, a 3/3 creature that continues to grow by exiling creatures from graveyards, whether youre leveraging your own or hating on your opponents graveyard